More Problems With Deep Space Exploration

I’ve been considering various reasons that might inhibit space exploration, and I think I have found one that might explain why exploration using space ships/probes, might be impractical.

It is the Travelling Salesman Problem, which is NP-hard. So even if we travel faster than light, heat death of the universe would occur long before we visit all the stars in our galaxy.

There are two ways I can think of to get around this problem.

  1. Use extensive telescopy before deciding to go somewhere, and make sure you really want to go there. i.e. Don’t try to go everywhere.
  2. Use self replicating space probes instead of one probe.
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