i agree
No serious ,what the hell does that suppose to mean?
About ISS: I'm not very optimistic about that particular project.I think the need for scientific research in space is not that big these days.We have already learned a lot from MIR and varios satelite's.For now it think we schould set our priority's on space exploration ,especially on recource exploration. (and hey ,you never now if we stumble on a goody hut

)
Such big prestige project's are quite expensive.And maybe for long term reason's we schould save our energy a bit form ore pressing project's.
We schould also make more research on small though potent space exploring and infrastructure building rocket's.
Maybe it would be possible (givven that the particular planet has the nessecary recources) to build small probe's that build colony'd on planet's with the recources findable on those planet's.Kinda like a small automated colony builder ,relying on the recources of that particular planet rather than on earth's recource's. (that have to come way from earth) Colony's ,that could in it's final stage build small exporting probe's that could transport goods to earth.
Launching interplanatery probe's into space to any particular destination is much more expensive than launching such probe's from other planet's with Motherplanet Earth as destination. (givven that the escape-velocity is much smaller ofcourse

)
i think in the first stage's of space colonization we schould more aim for space comming towards us rather than we going in space.
I don't see any particular reason for humankind to colonize space if the over population on earth isn't to big.Once we have reached overpopulation on earth ,only then we will have the need for emmigration to inhabitable planet's/colony's.
But for the rest (ex. recource extraxtion or transportation) ,i think computer's can do the job for us.
The satelite is the perfect example of the things we should build.It's small (=cost effective) and can do a perfect job.