Are we really alone on this planet?

What does infinity mean to any of us? Can anyone really conceive of what Infinity really is?

Yet the possibilities are truly infinite. While we are nothing, collectively and throughout time, more than a speck of dust to the universe.

And yes, what if there are other universes? And yes, what about other dimensions? And what of the other things that are currently unknown?

It's infinities in all ways. From in between fractions to either ends of a number line and onto what is imaginary with the number i. And so much more.

To limit it, is to limit yourself. Which is unrealistic, because all the known infinites, which we have troubles conceiving, do exist!

I believe there are probably multiple planets with some sort of life out there. Even with our very limited view of nearby planets, our instruments have detected objects that are in zones that would support life similar to that on earth. We have no idea what other types of life might be out there. My poor brain isn't smart enough to comprehend the vastness of space and the unknowns beyond our senses.

Sentient life must be out there even if it is in another galaxy. But it could have also lived and died a billion years ago

On this planet, sure.

In the vastness of space, not at all, and it’s foolish to think we’re anywhere near the most advanced species in the galaxy.

My explanation is distance and physics. So yeah. We really are alone on this planet. But human ego won't let some be OK with that.
Space is a big place. The distances to planets that could potentially have the building blocks of life are SO far away and would take SO much time to traverse, it's kind of silly to even consider it.

While all the attention is focused on the vastness of the universe, I think it's important to recognize how we know little about how small is small. To put the two together, they say our vast universe started with the big bang ... of a pin size something. Are there more tiny universes in a drop of water?

I fully believe that we are not alone. I not only think that there are intelligent extraterrestrials in other galaxies, but also that there are (and have been for thousands of years) extraterrestrials and hybrids living on our planet among us.

Scientifically speaking, there is no current proof of non-Earth based life. The best I can say is, based on available data, it's unlikely that we are the only life in the galaxy. More unlikely than that in the entire observable universe. Really interesting to me is, are we the only life in this solar system?

Well there are other people on this planet, you mean in the universe, no we’re not