Both. It was loss of faith in the Python BDFL and core dev team, and also an examination of performance and reliability. Running on V8 and having type safety is

Both. It was loss of faith in the Python BDFL and core dev team, and also an examination of performance and reliability. Running on V8 and having type safety is a sweet spot that I haven't found elsewhere. Primary motivator was that Python has been creaking along for a while now, with a precarious future and there was finally a clear spot of greener grass to move to.