Soldiers on an M3 Amphibious Rig release gasoline canisters on the Tamsui river simulating countering a Chinese invasion as part of asymmetric warfare drills for the upcoming annual "Han Kuang" military exercises in Taipei, Taiwan, July 19, 2022. REUTERS/Ann Wang 

A fisherman looks on as soldiers on an M3 Amphibious Rig release gasoline canisters on the Tamsui river simulating countering a Chinese invasion as part of asymmetric warfare drills for the upcoming annual "Han Kuang" military exercises in Taipei, Taiwan, July 19, 2022. REUTERS/Ann Wang 

A M3 Amphibious Rig with gasoline canisters enters the Tamsui river, while simulating countering a Chinese invasion as part of asymmetric warfare drills for the upcoming annual "Han Kuang" military exercises in Taipei, Taiwan, July 19, 2022. REUTERS/Ann Wang 

Soldiers on an M3 Amphibious Rig release gasoline canisters on the Tamsui river simulating countering a Chinese invasion as part of asymmetric warfare drills for the upcoming annual "Han Kuang" military exercises in Taipei, Taiwan, July 19, 2022. REUTERS/Ann Wang 

Soldiers on an M3 Amphibious Rig release gasoline canisters on the Tamsui river simulating countering a Chinese invasion as part of asymmetric warfare drills for the upcoming annual "Han Kuang" military exercises in Taipei, Taiwan, July 19, 2022. REUTERS/Ann Wang 

Soldiers on an M3 Amphibious Rig release gasoline canisters on the Tamsui river simulating countering a Chinese invasion as part of asymmetric warfare drills for the upcoming annual "Han Kuang" military exercises in Taipei, Taiwan, July 19, 2022. REUTERS/Ann Wang 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, celebrates with laureates Eric Francis Wieschaus, Angus Deaton and Duncan Haldane in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, celebrates with laureates Eric Francis Wieschaus, Joseph Hooton Taylor Jr, Duncan Haldane, Angus Deaton and Christopher Sims in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, celebrates with laureates Joseph Hooton Taylor Jr and Duncan Haldane in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, celebrates with a glass of champagne in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, walks on the campus of Princeton University, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, walks on the campus of Princeton University, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, celebrates with a glass of champagne in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, speaks to reporters in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, speaks to reporters in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, speaks to reporters in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, speaks to reporters in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, speaks to reporters in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, speaks to reporters in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, speaks to reporters in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, speaks to reporters in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

Scottish-born Princeton University professor David W.C. MacMillan, who shares the 2021 Nobel Prize in Chemistry together with Benjamin List for the development of asymmetric organocatalysis, takes off his face mask before speaking to reporters in Princeton, New Jersey, U.S., October 6, 2021. REUTERS/Eduardo Munoz 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, celebrates with well-wishers at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, poses at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, celebrates with well-wishers at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, celebrates with his wife Sabine and son Paul at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, speaks to reporters at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, speaks to reporters at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, speaks to reporters at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, celebrates with well-wishers at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, poses at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, poses at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, poses at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, celebrates with well-wishers at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, celebrates with well-wishers at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, celebrates with well-wishers at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, celebrates with well-wishers at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, celebrates with well-wishers at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, celebrates with well-wishers at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay TPX IMAGES OF THE DAY 

Well-wishers wait for German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, to arrive at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

Well-wishers wait for German scientist Benjamin List, who shares the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, to arrive at the Max-Planck-Institute for Coal Research in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

People put up a placard after German scientist Benjamin List won the 2021 Nobel Prize in Chemistry together with David MacMillan for the development of asymmetric organocatalysis, in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

A sign mentions German scientist Benjamin List, after winning the 2021 Nobel Prize in Chemistry for the development of asymmetric organocatalysis together with David MacMillan, in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

A sign mentions German scientist Benjamin List, after winning the 2021 Nobel Prize in Chemistry for the development of asymmetric organocatalysis together with David MacMillan, in Muelheim an der Ruhr, Germany, October 6, 2021. REUTERS/Wolfgang Rattay 

An AirBridgeCargo Airlines Boeing 747-400ERF plane takes off at Moscow's Sheremetyevo airport, September 8, 2014. Russia signalled on Monday it might ban Western airlines from flying over its territory as part of an "asymmetrical" response to new European Union sanctions over the Ukraine crisis. REUTERS/Maxim Zmeyev (RUSSIA - Tags: POLITICS TRANSPORT) 

A KLM Boeing 737-900 plane is seen at Moscow's Sheremetyevo airport, September 8, 2014. Russia signalled on Monday it might ban Western airlines from flying over its territory as part of an "asymmetrical" response to new European Union sanctions over the Ukraine crisis. REUTERS/Maxim Zmeyev (RUSSIA - Tags: POLITICS TRANSPORT) 

A striped asymmetric catsuit by Yansai Yamamoto (1973), used by performer David Bowie on his Aladdin Sane tour, is seen at the "David Bowie is" Exhibition at the Victoria and Albert Museum in London March 20, 2013. REUTERS/Neil Hall (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

Russia's Victoria Komova performs on the asymmetric bars during the women's gymnastics team final in the North Greenwich Arena at the London 2012 Olympic Games July 31, 2012. REUTERS/Brian Snyder (BRITAIN) 

Aliya Mustafina (C) of Russia celebrates winning a gold medal with silver medallist He Kexin (R) of China and bronze medallist Elizabeth Tweddle of Britain at the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Aliya Mustafina of Russia celebrates winning a gold medal at the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Gabrielle Douglas of the U.S. competes in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Aliya Mustafina of Russia bites her gold medal during the women's gymnastics asymmetric bars victory ceremony in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012.REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Aliya Mustafina of Russia gestures with her coach after winning a gold medal at the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain looks at her score at the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain competes in the women's asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Gabrielle Douglas of the U.S.competes in the women's asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Gabrielle Douglas of the U.S. competes in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Gabrielle Douglas of the U.S. competes in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Aliya Mustafina of Russia competes in the women's asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)