Put it this way: (hold on, we're doing some math)
Let's say there are on average 8 planets in each solar system.
In each galaxy, there are on average 100 billion stars. That's 800 billion planets per galaxy.
There's estimated to be 200 billion galaxies. That ends up being at LEAST 160 TRILLION planets in our universe.
And Earth is the only one, the ONLY ONE to develop the correct conditions to inhabit life, intelligent or otherwise?
Yeah, right. Those odds make sense.
We're either one of a billion inhabitable planets or alone in a hundred-trillion. And I know which option sounds scarier to me.