concurrency vs. paralellism

Like in other languages (JS for example) Rust also hast the concept of asynchronous operations. They are mostly used to wait for IO but in this case I think it would be good to use it instead of spawning a new OS thread. That method of achieving the execution of multiple actions at the same time is mainly meant for resource heavy operations.

No files, tests, or entry points are named. Start by locating the current OS-thread spawning path and determine how asynchronous operations would fit the terminal's execution model; done would require an agreed approach and verification that the relevant concurrent actions still work correctly.

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