Feasibility of six inch space-faring aliens

I've recently been playing a alien game with various alien species. After playing for a bit, I wondered whether or not a 6-inch tall intelligent race could exist.

I can already see some major disadvantages, one being the complications of requiring the necessary energy to power the body, especially the brain, but I can also see some major advantages, such as having the ability to mostly stay out of sight from far larger predators. I'd imagine that if said species were intelligent enough to make small cities and relieve themselves of their natural predators, then it would only be a matter of time for them to colonize their entire planet, and probably even avoid risks of overpopulation and excess mineral usage due to their small stature.

Now to the question:

Could a six inch tall intelligent species ever feasibly evolve, and if so how?

posted over 4 years ago

RotNDecay‭

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