[fulafel]

Mojo is still quite far in vaporware land as far as Python compatibility goes, but they do claim to target much higher level of compatibility than eg Crystal.

[Daishiman]

People want bug-for-bug compatibility when switching costs are high, and that never works out in practice.

An alternative language has to be far superior to its alternatives to justify the switching costs.

[leadingthenet]

In fairness, it worked (quite well) for Typescript.