according to the helpful folks at energy fiend, it would take a little over 60 cups of coffee to kill me. unfortunately, it doesn't specify over how long a period of time and i am not really at a point where i'm ready to play around until i get it right.
of course, given my usual intake, 60 cups doesn't even seem like too great a stretch. a stretch, yes, but not an impossibility.
i feel like i should be up to the challenge, given that i apparently once drank what should have been a lethal dose of verveine tea without realising what i was doing. (as a testimony to exactly how anxious i was, the tea didn't even put me to sleep. come to think of it, it was probably my massive regular intake of coffee that saved my life.)