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Re:Scientists 'Inject' Information into Monkeys’ Brains by pedrosorio on Friday December 08, 2017 @04:46AM (#15877698)
By 4x "increase" in 10%. he means you'd become 4x faster at things that take 10% of your time currently (the other 90% corresponds to the "coming up with solution" / "wtf" moments).

That means for a job that takes 10 + 90 units of time, the 10 section would be done in 2.5, for a total effort of 92.5 instead of 100. That's an improvement of 100/92.5 - 1 = ~8.1% in productivity.

Re:Scientists 'Inject' Information into Monkeys’ Brains by nnq on Monday December 11, 2017 @08:00AM (#15896751)
THANKS! I was totally braindead when I wrote that. My 4% is actually the 8.1% you mention, and the way you phrase it makes it much clearer too :)