The growth looks exponential (and technically probably is, just not in the normal sense of that phrase).
Like any physical process, it’s likely to be limited and follow something more like a Logistic function, which looks exponential at the start but ceases to follow that curve forever (which matters for making multi-decade projections).
Like any physical process, it’s likely to be limited and follow something more like a Logistic function, which looks exponential at the start but ceases to follow that curve forever (which matters for making multi-decade projections).
https://en.m.wikipedia.org/wiki/Logistic_function