[OPINIONS] Extraterrestial life?

[PutraenusAlivius]

Do you guys believe in ET? I do.

There are millions of galaxies in the Universe, and there's a probability that 1 in 200 or so star systems have planets.
If we use Earth criteria which includes:

• Existence of H20
  
• Existence of O2 and C02
  
• Hydrocarbons
  
• Right temperature
  
• Similar to Earth pressure
  
• A viable atmosphere and magnetosphere
  
• In the hospitable part of a star
  

We would probably got 10 - 20 billion hospitable planets or so. But we used EARTH based systems. I mean do extraterrestial life follow Earth? I don't think so.
If we used that concept then the criteria should be:

• Hydrocarbons
  
• Right temperature
  
• A viable atmosphere and magnetosphere
  
• In the hospitable part of a star
  

By using that instead, then hospitable planets get to be 90 - 190 billion right? But what about intelligent life?
Since that is different, we have to use the same Earth criteria.
And out of approx. 90 - 190 billion hospitable life, approx. 10 - 20 billion may have intelligent life.

But, this is just my opinion. Please share yours here and probably you can discuss something.

[Traggey]

[LordOfDragons]

Excellent.

[RedKnight]

I believe life exists, it is just hard to find. We are not the only one.

[Sampyli]

Yeah, the idea of Earth being the only planet with any kind of life form is pretty depressing.

[BAndrew]

Is there ET?
It's almost 100% certain that there is.

Will we ever meet or communicate with them?
Extremely unlikely.

[PutraenusAlivius]

Seriously? I thought Moderators fix out of place posts and keep everything on topic.
But this? You are deliberately trying to post this off-topic and I don't think that's the right etiquette for someone with a high position.

I actually wonder why you are made a Moderator. Please keep it on topic.
This is serious.

[Nice]

hehehe

[BAndrew]

Seriously? I thought Moderators fix out of place posts and keep everything on topic.
But this? You are deliberately trying to post this off-topic and I don't think that's the right etiquette for someone with a high position.

I actually wonder why you are made a Moderator. Please keep it on topic.
This is serious.

I don't think it's off-topic. It was highly ironic though.

[PutraenusAlivius]

Seriously? I thought Moderators fix out of place posts and keep everything on topic.
But this? You are deliberately trying to post this off-topic and I don't think that's the right etiquette for someone with a high position.

I actually wonder why you are made a Moderator. Please keep it on topic.
This is serious.

I don't think it's off-topic. It was highly ironic though.

C'mon, a little payback won't interfere.

Topic:
I think that 1 - 5% of all intelligent life (except us) can communicate, however maybe they use other forms of communication (I don't think an alien will send a message with radio waves, but probably another form of electromagnetic radiation that they can detect, but we can't.) or maybe they're way too far.