Neal Stephenson has a funny anecdote about explaining PowerPoint to a friend of his who had managed to be unaware of it until now, culminating in Stephenson's e

Neal Stephenson has a funny anecdote about explaining PowerPoint to a friend of his who had managed to be unaware of it until now, culminating in Stephenson's explanation "for people who can't communicate, it's what a dialysis machine is for people who don't have kidneys" [1]. This is the culmination of his response [2] to a question [3] in the Q&A period of a talk on his book tour for Seveneves [4] [1] https://www.youtube.com/watch?v=rIHF6vDv8AE#t=40m20s https://www.youtube.com/watch?v=rIHF6vDv8AE#t=40m20s [2] https://www.youtube.com/watch?v=rIHF6vDv8AE#t=38m46s https://www.youtube.com/watch?v=rIHF6vDv8AE#t=38m46s [3] https://www.youtube.com/watch?v=rIHF6vDv8AE#t=38m06s https://www.youtube.com/watch?v=rIHF6vDv8AE#t=38m06s [4] https://www.youtube.com/watch?v=rIHF6vDv8AE https://www.youtube.com/watch?v=rIHF6vDv8AE