And that is indeed an apt comparison. Cars today are about twice as fast as the Model T on open road, and perhaps 30% better than Model T in the urban environment. If any device other than a flashlight of today were that much "better" than its 1919 counterpart, it would be laughed out of a toy shop, let alone a hardware store. Sure, today's flashlights are also slightly sturdier and have comfortable grips made out of futuristic materials, not to mention assorted control functionalities - the same sort of user-irrelevant nonsense that cars have been camouflaged with in the past century.
This because there really is no demand for cars that would be thrice as fast as Model T, except as freak experiments. It is in most other fields of application where a thousandfold improvement in performance is the very barest minimum to even register on the market. But nobody really wants a better car. And nobody wants a 24th century space adventurer to carry a flashlight that has "improved" upon today's performance by as little as the automobile has progressed beyond Model T - either it has to be the same as today (or in fact deliberately and artificially somewhat less capable), for the above reasons of drama, or then it really ought to be truly improved. As in, light up the entire room/cave/forest/city as if it were daytime. At the very least.
Timo Saloniemi