In 2011 a man paid $31,000 at auction for one of John Lennon's teeth. That seemed weird enough, but the story is getting even stranger; the man, a dentist named Michael Zuk, intends to use the biological matter in that tooth to create a clone of John Lennon. He has come to terms with researchers in the US to begin sequencing the DNA found in the tooth.
“I am nervous and excited at the possibility that we will be able to fully sequence John Lennon’s DNA, very soon I hope. With researchers working on ways to clone mammoths, the same technology certainly could make human cloning a reality.”
This is the world in which we live, where what would have been a silly movie premise two decades ago - a pop star cloned after his death! - is approaching reality. I say approaching, of course, because it just seems really unlikely this could work out. At least according to my limited understanding of stuff like cloning and what it costs. 31k was a big expenditure, but the price of cloning a human...
Which brings us to perhaps the ultimate question: would this clone even be John Lennon? Was it Lennon's genetic code that made him who he was or the sum total of his experiences? Would a clone of Lennon, raised in controlled conditions, grow to be the same man who was brought up in Liverpool, who wanted nothing more than the love of his absent parents, who honed his craft on the Reeperbahn? It would be an amazing way to examine nature vs nurture.
And right now someone is writing a science fiction novel about this. Maybe the twist ending could be that when the cloning is done Zuk realizes he got rooked and it wasn't even Lennon's tooth in the first place - he ends up with a Korean baby.