zlacker

>>tablet+(OP)
Let's just imagine we're critiquing cars or planes in about 1910. They're so flawed. No one can say with certainty whether or how they will improve.

Side note of interest, from Wikipedia: "Flying Machines Which Do Not Fly" is an editorial published in the New York Times on October 9, 1903. The article incorrectly predicted it would take one to ten million years for humanity to develop an operating flying machine.

>>SKILNE+O21
Conversely, imagine we're someone talking about colonising the moon in 1969.

>>sudden+751
It's a good idea to think of a converse situation, but this is a bad example. The constraint was not about technology but about budget, perceived benefits and political will.

>>SKILNE+yA2
What technologies existing in 1969 might have been used to create an environment with a breathable atmosphere and a self-sustaining ecosystem on the Moon?

What technologies existing today might be used for this purpose, assuming no financial or political limitations?