Wrong, modern electronics are a lot less fragile and temperamental than ye olde rubbish. CMOS > TTL > Valves. Electronics aren't the problem, power & heat management is. At the end of the day it takes far more computing grunt to run a mediocre OS than it does to navigate space.
The real exercise is ever getting the economics to work. Getting stuff back to planet Earth is comparatively trivial. Getting stuff off planet Earth at affordable costs per tonne, now that's a challenge. Project Orion style rockets don't count, you know they won't be allowed.Not saying it can't be done at all. But getting to something that'd probably survive the trip and function fine is going to be a real exercise.
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