We've got AK that's missed and we're talking about value shoving??
I have a brief and rather reducitionist explanation. Starts with assumption that pot is so big and villain has so little left compared to pot that all thoughts of folding are to be put out of our mind.
We're against either a donk or a non donk.
Non donk
All his chips are going in the middle pretty much all the time (given a nondonks likely holdings , it's tough to imagine a scenario where he's
both a nondonk who took that line pre
and he'll check it down).
Given that we can't fold there's not much of a problem in putting the chips in first.
We've nothing to lose as it's makes no difference. We can just look at scenario when opponent is a donk when deciding whether to bet or not.
Donk
This is glorious, we have abs. no read on opponent but because of above we can proceed as if he's defo a donk.
Ridic thin value bets possible when you have to call anyway and likelyhood of opponent betting is very high.
AK could be good...
I prefer to check call here, but value betting isn't horrible.