On: Response to "Ruby Is Not a Serious Programming Language"

[lern_too_spel]

How about the fact that Ruby makes immutability difficult, and Hash does not copy keys on write and read? Almost every program uses a hash table, and Ruby makes them especially dangerous.

[Lio → lern_too_spel]

At least we have new features for immutability as part of Ractors.

e.g. Ractor.make_shareable(data)