7 is half node, 4 full node, 3 half, 20A full node again. Moore's law is doubling of transistors density every 2 years. So the roadmap is indeed conservative, just following the Moore's law.
Indeed. It will be interesting to see how this will interact with architecture roll outs - I wasn't entirely clear how that would work from the webcast.
I think you're saying that the incremental half nodes steps are a more conservative approach?