You know how this goes ... successful PL5 25 - 30c (at least)
Guidance that 20nm is (easily, likely, most likely, more than likely) achievable in PL6 ... 40-50c+
Recoil back to 20-30c ???
Successful PL6 ... bingo - TH
The most interesting thing about 4DS for me is how all the delays, hurdles, challenges and time/capital consumption have meant that PL6 is now likely to arrive on the global market at precisely the right time when electricity demand/supply/data storage etc becomes the main issue for tech-advancement.
