I get it, that is technically not impossible, but it reminds me when people believed so hard all through 2016 that Vega will eventually be launched that year. That too was beyond the limits of optimism for me. I can see functioning 7nm silicon in some form coming back to the labs even next year, but to ship enough actual Sapphire Rapids CPUs and enough of these very ambitious Xe chips to bild an Exaflop+ supercomputer in 2021? All I'm saying is, I'm not holding my breath.
Just as a side note, yes, for sentimental reasons and out of a sense of fairness, I'm quite pro AMD for many years now even though I own a PC with an Intel CPU and an NVIDIA card

- but I find the announced product very-very compelling, and I really don't want to see it fail