Interesting experiment! Here's a suggestion for a new protocol: set up a stand at some busy places (stadiums, train stations,...) and ask random passers-by to t

Interesting experiment! Here's a suggestion for a new protocol: set up a stand at some busy places (stadiums, train stations,...) and ask random passers-by to toss a coin a few times 'for science'. Should be easier to get to statistically meaningful orders of magnitude (if not, go to a cosplay event in 'The Witcher' costumes, that should help ;)), and arguably far more representative for the situations that we care about: the two participants will have become far more experienced at coin tossing after 20k tosses, but we care more about random people who hardly ever toss coins (we already know that people who practice a lot can control the outcome of a toss with reasonable accuracy).