> Normal people look at 2 on day 1, 4 on day 4, 8 on day 7 and think "Oh, about 4 every 3 days. Shrug. No big deal." Horizontal. Yeah well HN is mostly a bunch

> Normal people look at 2 on day 1, 4 on day 4, 8 on day 7 and think "Oh, about 4 every 3 days. Shrug. No big deal." Horizontal. Yeah well HN is mostly a bunch of software engineers who spend most of their day relying on the fundamental that at the end of 32 days in your example, there'll be 4 billion, so... On the other hand your example is extremely contrived, because exponential growth in epidemiology is mostly not possible except for short periods.