There are many good points about KDB/Q the product (most of all simplicity) and it certainly was well-engineered. But K is not a modern language and its perform

There are many good points about KDB/Q the product (most of all simplicity) and it certainly was well-engineered. But K is not a modern language and its performance is only impressive as an interpreted language; and these gains come at a significant cost (various limits on expression sizes / variable counts / branch sizes, no closures, poor error messages). It's only really "fast" on bulk operations, much like Python. If you want to see what a modern K or Q might look like (with static types and an embedded JIT compiler!), checkout the excellent Hobbes project from Morgan Stanley: https://github.com/Morgan-Stanley/hobbes https://github.com/Morgan-Stanley/hobbes