Isn't IPv4 a subset of IPv6? So it shouldn't matter if my home router or modem is compatible, if the changeover is done properly. My ISP would do the equivalent of NAT routing with my IPv4 address being part of the IPv6 address the ISP sends out to the world.

Yes, but it would be nice if the source survived the sending.

All you're missing is, "divisible by the square root of the number of hydrogen atoms extant immediately after the Big Bang," (and requiring at least 13 of the attributes) and everythings covered.

iPS cells are usually adult stem cells. So it's probably adult, although there's a slight chance they're embryonic. I suspect they were adult because of the way the article was written. They never mention type until they start talking about embryonic stem cells at the end of the article. That way they didn't lie, they just forgot to mention that little detail.