[ttepasse]

Back in the 2010s there was a TED Talker/grifter who advocated a wider stance to project power and confidence. For a time that notion must have been picked up by political consultants, leading in the UK to the so-called Tory Power Stance:

https://www.theguardian.com/politics/2018/apr/30/sajid-javid...

Of course, connoisseurs of the historical documentary series “Blackadder” know that this has a tradition going back to Regency times.

[nvm0n2]

You're referring to Amy Cuddy, promoter of "Power Posing" and one of the top 100 most inspiring women according to the BBC:

https://www.bbc.com/news/av/world-41521671

It was later discovered that her work was fraudulent and her coauthor walked back the claims.