Do you believe there are species that have mastered FTL travel?

[lumberjack_jeff]

122. Nonsense.

The point of life is to reproduce to fully exploit the environmental resources available.
The point of intelligence is to expand the universe of resources available for the organism to exploit. We discovered fire to enable us to eat a wider variety of foods (i.e. bread). We covered ourselves with skins to enable us to exploit colder climates. We invented boats to exploit aquatic resources. We explore to expand our territories. We'll eventually colonize Mars and the Moon for the same reason. We've been able to explore space for what? 60 years? It is far too soon to project our experience of the last 20 years millennia into the future.

Forget for the moment directly exanding our population onto other planets. Intelligent and technologically-capable critters are by definition curious. They might not be physically present on every life supporting world, but would definitely have left probes and radio signals. The moon has been there, quietly orbiting a life-filled planet for the last four billion years. Despite that, the only technological objects there are those of humans, as are the only footprints.

There's zero reason to believe that intelligent life will suddenly forget the secret of their success.