> while also being the last thing on earth languages like Node and Java would ever permit developers to do. You sure about that? https://www.npmjs.com/package

> while also being the last thing on earth languages like Node and Java would ever permit developers to do. You sure about that? https://www.npmjs.com/package/mmap-io https://www.npmjs.com/package/mmap-io https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/nio/MappedByteBuffer.html https://docs.oracle.com/en/java/javase/11/docs/api/java.base... mmap is a system call, not some C-exclusive fancy feature. If your language can print something on the screen, there is no reason it can't mmap a file. And if the serialization was the bottleneck, mmap would not have changed anything anyway.