Gaining

if I drank let's say a 2k calorie drink everyday, would I gain a much greater amount, faster, if I drank say, 5 times that amount everyday?

At a certain calorie point, your body will just reject the excess calories, I believe. What number that is probably depends on individual physiology.

Not something I would want to do if I was just starting out.
Like he said everyone is different.
Your metabolism is going to be shocked with the 2000 calorie uptick and will probably try to even things out.and that takes time.
Gaining weight is not a fast think it takes time.

bad idea i think you would poison your self eventuly.
better to look in to the silence blood chemistry.

Simply stated, the more calories you consume the more you gain. How much you need to, lets say 1 pound, is different for everybody. I won’t go into the science because it’s way to complicated. That cap on how much your body can take is true. You could in theory consume 50.000 calories but only actually absorb 7.000, just to name some numbers.