How to design a time machine, a speculative fiction | things magazine

The energy and manpower required to send something back in time ensures that any time machine is on a one-way journey. There is no facility for making the return trip, so the machine will have to travel forwards in time at the same speed as everything else. So in order to gather data from a time machine, it needs to be programmed to first gather data and then conceal itself until such time as it can be recovered by those people who sent it back in the first place, presumably the moment after they have successfully dispatched it.

A nice, thought-provoking article about time and preservation.

Things Magazine.

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