In no-limit poker, a player may wager their entire betting stack at any point that they are allowed to make a bet

It is the most unrestrictive form of betting rules, and thus the hardest.

3 is the magic number, not 4?

high value contributors leave a community because they cannot gain something from it, which leads to the decrease of the quality of the community. Since the people most likely to join a community are those whose quality is below the average quality of the community, these newcomers are very likely to harm the quality of the community.

https://blogs.cornell.edu/info2040/2015/10/14/the-evaporative-cooling-effect-in-social-network/

This might be the A/B illusion.

Basically, it was stored on a central server, and that was not scalable.

a web annotation tool from Google, launched in September 2009 and discontinued in December 2011. Sidewiki was a browser extension that allowed anyone logged into a Google Account to make and view comments about a given website in a sidebar

https://www.youtube.com/watch?v=CsjJOsx84MA

since 1991, less than two per cent of all peer-reviewed studies say climate change is caused by something other than human activities (that's burning fossil fuels and digging up forests, to you and me).

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