High level is a mistake because the slowest part of a web project is the database. It's the bottleneck of the web. The reason why we can use slow languages like

High level is a mistake because the slowest part of a web project is the database. It's the bottleneck of the web. The reason why we can use slow languages like python, php or ruby on the web rather than C++ is because the database is 10x slower. Putting a high level leaky abstraction over the bottleneck of the web is a mistake. A language that is a zero cost abstraction is a better design choice.