[Vince Ferrer]

There are more planets than expected, but despite finding planets in the "goldilocks zone," nothing we have found so far is very much like Earth. Or at least attractive enough for us to want to go there and colonize.

We are not nearly at the limit of the telescopes we can build. Space based telescopes can be built that can see city lights, oceans, forests, etc on nearby worlds, if they exist.

We will eventually find something we can colonize or use, and we can send robots to even hostile worlds for resources, but my opinion has always been we are the only intelligent species out there.

[Windflier]

my opinion has always been we are the only intelligent species out there.

Start crunching the numbers of potentially habitable worlds in the known universe, and you might just rethink that.