Python is abysmally slow, but provides access to GPU and (soon) multi-core.
Python is abysmally slow, but provides access to GPU and (soon) multi-core.
That said, support for concurrency is relevant but more for "masking" I/O latency than for MIPS, a problem which is apparently more common. For a language created after 2010, it is nearly a fault not to have something less primitive than threads to handle concurrency. It is like still manually managing memory manually like C also does.
I agree that "faster than C" claims too often hides some kind of cheating. But we have HN "reviewers" for that ;-).
C gives you control.
That said, save for the Basic language, C is probably the lowest common denominator for system programming and for all the programming languages to interface with each other (with relative efficiency).