You will still get a fair amount of cache misses, in which case, everything else in the stack being optimized will save your ass. I am not saying that implemen

You will still get a fair amount of cache misses, in which case, everything else in the stack being optimized will save your ass. I am not saying that implementing page cache is bad — it is essential for WordPress —, just that page cache is not the only thing that matters, but seems to be the go-to solution for performance issues with WordPress, when in reality, you should look at the picture as a whole.