Well, it may be confusing to some that one of the most, if not the most, prolific mathematicians of modern times accepted, and even embraced, what would be in modern times, the use of a substance that would make said prolific mathematician a felon (at least in the US).
Also, Wikipedia, while generally good, is likely not good to use a definitive source.
It explains how even the academics seen as superhuman still couldn't do what the scientific community expects of the average grad student today, without having to use some extreme measure.
Also, Wikipedia, while generally good, is likely not good to use a definitive source.