I roughly read the abstract as asserting that you could write down learning state of an individual as: x_i(1+r)^n_i Where the rate r is common but n_i (time s

I roughly read the abstract as asserting that you could write down learning state of an individual as: x_i(1+r)^n_i Where the rate r is common but n_i (time spent) and x_i (starting position) are individual. Sure that’s believable but I frankly can’t be bothered to read enough of this article to see how they argue that a model like that is physically relevant and not just yet another way of writing things down.