Are there more stars with habitable solar systems than humans who ever lived on earth?

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answers:
Jeffrey K say: Does habitable mean life is possible there or life exists there? That is a big difference.
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Ronald 7 say: That is quite Logical Jim
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nineteenthly say: Probably.
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ngc7331 say: probably
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Jim say: Probably.

There are billions of galaxies and billions of stars per galaxies.
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az_lender say: Can't answer this until we find at least one example of life having arisen elsewhere.
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Nyx say: Unknown at present.

I usually go with Nyx's 1% rule (reg. t.m.) -

Take1% of all the galaxies in the universe.
And within those galaxies, only 1% of the stars had planets with some sort of life on them.

It would still be a huge number.
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Acetek say: There are 2 Trillion galaxies in the Universe with let us say an average of 400 billion stars each.
think about it.
There are 400 billion stars in our galaxy alone.
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Nightwolf say: We don’t know
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Davros say: The only true answer to this is - we don't know.

What classes as habitable anyway? An oxygen and water rich biosphere like Earth, or planets with some marginal approximations of Earth like conditions (in which a planet like Mars would be included)?
This is far too much a piece of string question.
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