People can usually walk away faster than sea level can rise, so even if many of the piles of bones and pottery are now under water, the DNA of the inhabitants m

People can usually walk away faster than sea level can rise, so even if many of the piles of bones and pottery are now under water, the DNA of the inhabitants might not be. I'm hoping we'll soon be able to recover more of the early history of human migrations via DNA in living descendants. We're apparently getting closer to being able to do an entire human gene sequencing for about $100. A $100 million project over the next generation or so could get us the complete genomes of a million people. Donated genomes could increase that number significantly. With enough data and improvements in algorithms, ever more subtle "shadows" of ancient people will emerge. In addition, the ability to recover/reconstruct DNA from known archaeological sites will grow rapidly. The degradation of old DNA can be compensated for statistically, to some extent, by having many more samples. The number of samples will grow as the cost per sample falls, and the cost is plummeting. In other words, we may not have to find a lot of new sites to experience a rush of new discoveries in the very near future. I'm looking forward to it.