> 5xN is easier to remember than 16xN on account of 5 being the smaller number.
By that logic, shouldn't it be easier to remember 7 * n than 10 * n, because 7 is the smaller number?
> 2^n is logarithmic
Also, as Jtsummers (https://news.ycombinator.com/item?id=10973381) points out, the function `n \mapsto 2^n` is exponential: its growth is significantly faster, not significantly slower, than exponential.