Most interesting thing I have seen for for database indexes is this paper. https://www.arxiv-vanity.com/papers/1712.01208v1/ https://www.arxiv-vanity.com/paper

Most interesting thing I have seen for for database indexes is this paper. https://www.arxiv-vanity.com/papers/1712.01208v1/ https://www.arxiv-vanity.com/papers/1712.01208v1/ Using a Neural Network in place of a B-tree. What is interesting is a NN can use many processors at the same time versus you can not with a B-tree. In the end it comes down the power as in joules to get something done.