Intel, by contrast, says that Moore's Law is still alive. But Intel is technologically behind, and it is easier to improve when there is someone to learn from, so maybe there is a wall that they haven't yet hit.
Regardless, it is a very different law than when I was young, when code just magically got faster each year. Now we can run more and more things at once, but the timing for an individual single-threaded computation hasn't really improved in the last 15 years.