Originally Posted by
Mark Rippetoe
All lifters lack that, Matt. Doesn't matter how advanced you are, your Perceptions of your Exertion are subject to inaccuracy due to the nature of human perception, as Nockian observes. I have set PRs while badly hung over, and even recently I benched 285 after telling Stef to watch me close because the last warmup felt like 285 would never go. The bottom line is that perceptions are not data. And the use of numbers for perceptions does not make it data, for any level of training advancement.