Full disclosure: I am a US resident since early 1980's.
I remember a gallon of gas (about 4 liters) costing about $1 in the 80's and 90's; now it's about $4/gallon. Also, a Big Mac cost around a $1, now it's around $4 too. So, yeah, in 20-30 years, inflation has caught up to be about 400 %, I'd imagine. Considering that US economy is a bit better from Zimbabwe or just about any other nation in the world, I'd say the possibility of a cup of coffee costing $1000 in the next few years to be zero. Maybe in the next 50 years.
Checking right now some calculators for inflation as I get mixed results.
90- till now (24 years) it shows 83% no way near 400%
Of course the 1000$ coffee is almost impossible in two or 3 years , but in 10-20 , god knows what may happen
not sure how you came about that figure, but it is, unfortunately, impossible to do a proper calculation. inflation rates are likely underreported on the one hand, and don't take into account the approx. $85 Billion being pumped into banks monthly as part of QE. you'd be surprised how much bigger of a problem inflation is than what is commonly understood. i also believe that, due to nominal price increases in things like gas and coffee, that real total inflation is around 300-400% since 1990.
--arepo