Not sure if it counts as a "scientific experiment," but Roger Bannister's breaking of the four minute mile barrier seems to have been extremely fruitful. Not ju

Not sure if it counts as a "scientific experiment," but Roger Bannister's breaking of the four minute mile barrier seems to have been extremely fruitful. Not just for running, but for the concept of achievement in general; i.e. that when someone breaks a barrier, it becomes easier for others to follow. https://hbr.org/2018/03/what-breaking-the-4-minute-mile-taught-us-about-the-limits-of-conventional-thinking https://hbr.org/2018/03/what-breaking-the-4-minute-mile-taug...