Common misuse of words.
Decimate means reduce by 1/10 not almost completely destroy.
Exponential growth. The variable has to be in the exponent if it's a constant exponent that is polynomial growth.
Gaslighting isn't just lying. It's making someone belive that they can't trust their own memories or experiences so they believe you despite evidence to the contrary.
It's right there in the word. deci 1/10 mate from matus to remove. It's like expecting half price to mean 1/3 price. We use deci all the time to mean 1/10 Decileter, decimal, etc.