future marshall tries to tell his past self that things will get better (things are not going to get better)

the reason i say "things are not going to get better" is because his future self made a bet that every time he lies he has to take a swig of vodka
this has not deterred him from lying.
this is why he dies of alcohol poisoning.

whats an alcohol poisoning

he didnt know until his alcoholism caught up with him
he's 8'7" and 274 lbs
he could chug 3 full bottles of vodka and not even be tipsy