Who knows...We will never find out in our lifetime.

we need more whistle blowers,do you believe him? https://www.youtube.com/watch?v=iQH11GW7w8Q

Distance. How would you signal someone 50,000 lightyears away?

I believe we are not alone, but I doubt aliens have visited us or ever will.

no, we don't even know for sure how big is the universe

What about the countless reports of alien abductions? 

If one believed that we were not alone, wouldn't the abduction reports confirm that Extraterrestrial/Aliens are pretty close by?

I've been watching Star Trek and the fantasy of space travel and inter-stellar, inter-galactic exploration makes the idea more imaginable, but I remind myself that really, none of it will ever be possible.

Also, as much as I would love for it to be true, I don't believe there is sentient life outside of earth. But it's definitely a fun idea, much like fairies and dragons and all sorts of fantastic things the human mind was created to imagine.

Yeah, what about those abduction reports? Isn't it odd that there are no decisive and sharp photos or videos of aliens or UFOs although everyone and their mothers have a camera with them everywhere they go? smart phones, cellphones...

And isn't it inefficient to fly light years to another planet and then not show yourself to greater populations... only to single individuums... and fly back afterwards?

It could also be that we're in a relatively uninteresting part of our local galaxy, on the outskirts of the milky way system. If we develop ftl where would you go first. Besides even if alien species were able to observe the entire night sky, we've only been transmitting signals into space for less then a hundred years. They haven't even made it out the front door yet so to speak, we're on average 27000 light years from the center of our galaxy.

It is more likely that light speed is a real limitation though. Life has a tendency to expand exponentionally given the chance. An alien species capable of FTL could spread over the universe multiplying like a virus. Although it could go a lot slower then you would expect with generations getting longer and longer as a species advances while the procreation rate declines. At least that's what's already happening in our modern societies. Still after billions of years you would expect them to be everywhere.

Ofcourse even if FTL is possible that doesn't mean you can instanteaniously go anywhere. Heck maybe it's like Star gate and you need to ferry over a receiver first on a sub light speed ship before you can create a wormhole or transporter for FTL travel. Star trek's warp drive also wasn't very fast compared to the size of the universe.

Another possibility is that an advanced species will shed their material form, transcendence to an energy based life form so to speak. In that case we're as interesting as a colony of bacteria on a coconut floating in the middle of the pacific ocean. Energy based lifeforms will definitely choose to go where the highest concentration of energy is, which is not our boring sun.

Of course not... Haruhiism proved that we are not alone...

/thread