Extrapolating future-history is extremely difficult. You get into this mode where you extend the current set of capabilities and limitations until you hit an ed

Extrapolating future-history is extremely difficult. You get into this mode where you extend the current set of capabilities and limitations until you hit an edge, and to get past it you invoke magic. But it is so enjoyable and useful to creatively extrapolate or generate history, if only to encourage us to sink our time and energy into pushing that edge.