> The C++ committee basically evaluates features almost entirely in the abstract, writing papers and discussing privately among a small group of people about th

> The C++ committee basically evaluates features almost entirely in the abstract, writing papers and discussing privately among a small group of people about things instead of working on proof of concept implementations, getting actual real world feedback on it, or having something along the lines of Rust's nightly where experimental features can be tried out. Sitting on the C++ committee, we actually demand a lot of proof-of-concept implementation of proposals before they'll be accepted.