Well, first he starts with the obvious and sad truth that statistically most ppl who grind poker should eventually fail. Then he goes after a few cycles that he observed (mostly on his students but it happens with a lot of ppl including myself).
The most important, and the one which I´m most guilty, is the running away to get back. We suck with a very low winrate, which means high variance, yet instead of solving the real problem (the low wr), we put volume. Then the runbad comes, we get frustrated til quitting. Then, after a few weeks (months, years), we feel highly motivated again and come back. Obv any progress no matter how small is gone, and we begin with a low wr and the cycle keeps going on.
The other I remember quite vividly bc of some past arguments we had about you going away to develop new Philosopher-GTO preflop unexploitable strat lol
, is the hiding in learning. Bad results leads to going away to the lab. Unfortunately, this goes too extreme and too far for quite some time, leading to few or zero practice (learning a new thing and being able to effectively putting it in practice under stress, a clock, variance etc are very different things), and we get rusty in the gring leading to worse results than before.
Cheers