2nm is just a commercial name. The real features are much bigger, see, for example, https://en.m.wikipedia.org/wiki/10_nm_process https://en.m.wikipedia.org/wik

2nm is just a commercial name. The real features are much bigger, see, for example, https://en.m.wikipedia.org/wiki/10_nm_process https://en.m.wikipedia.org/wiki/10_nm_process. So we are quite far from 10 atoms per transistor. The biggest problem is lithography. ASML managed unexpectedly for many in the industry including Intel to solve technological problems with extreme ultraviolet sources, but shrinking transistors significantly further requires soft x-rays and the perspectives of that now for mass lithography are much more uncertain than for EUV ten years ago.