For me, syncing my TiddlyWiki through Dropbox has worked great. Might be tricky though with limited internet connection as it could cause conflicts if you do parallel editing, but so far it hasn't been a problem for me.
Yes, I think so. I took this course while studying the last of a five-year engineering program. The mental tools are still really useful, and not something I have encountered through the 'regular' courses given at our local university.
In a way, when we cross breed, we mess with the DNA on a genome wide scale hoping to end up with a particular combination of genes from the two original parents.
GMO can of course be applied in many different contexts. One for me seemingly benign application of GMO is when a gene in a particular crop variety is desired in another variety - instead of doing a messy and expensive breeding process to get an offspring with the desired gene, transfer the desired gene directly between the crops using gene technology.
As in all research, there are rightful concerns and less rightful concerns. What concerns me is when unscientific concerns dictates how science should be done.