Nature papers get retracted every year. I have not heard of DAC papers retracted.
If the Nature paper made it clear that RL is not seriously expected to work on non-TPU chips, it would have have probably been rejected. If RL works on many other chips, then evidence should be easy to publish.
If the Nature paper made it clear that RL is not seriously expected to work on non-TPU chips, it would have have probably been rejected. If RL works on many other chips, then evidence should be easy to publish.