Sure, the universal laws of physics wouldn't change. But there'd be a different atmosphere, different air resistance, different gravity, different minerals and so on.
Yeah sure. But how would that make the world any different then billions of other worlds just like it? How would that even make it interesting? I am just saying I do not understand why each and every world needs to be thought of as special.
"Nature is already starting to run out of chemical wonders for us"... is it? A lot of new drugs are inspired from natural sources, and some of the tactics being researched to fight, for instance, cancer and AIDs are inspired by animals that do not suffer from those diseases.
Yes yes. We still rely on nature for almost everything in some forum or another, but we are starting down the path of self reliance in making our own chemicals and life forms that are not pirated from nature. Of cource you also have a point with the designs and stuff, but will will keep inovating long after we have copied everything we can from nature. The thing is, nature has this
huge lead on us, but she advances at a glaciers pace and will most likely be outdated soon.
Although if you really do think that, wouldn't a whole new world full of completely different "nature" be just what we need? Maybe you'd be less likely to find drugs based innovations, but you could still find, say, propulsion based ideas from new animals, as well as possibly fuel crops.
I really do not see how. Nature has limitations that we simply do not. Once we get the basics down, then I seriously doubt anything not super drastic would make it so we find a improvement in alien worlds. Also, at this point we are straying from my point of view, because I never said I wanted to kill out multi-cellular organisms. Or even single celled buggers (Although flash freezing's them and storing them away forever would be okay with me.)