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Indeed it is more like a plastic. Woods intrinsic strength is from its grain structure but one day that may even be possible to emulate.

However I'm not saying these are bad things.. I've had one of those after I had a surgery:
http://woodcast.com/
You should check it out as I think innovations like this are crazy awesome :) I think it's biodegradable plastic mixed with wood.

Cool, I've never seen that before.