The Taiwanese Semiconductor Manufacturing Company (TSMC) has reportedly held a ribbon-cutting event for a new fabrication unit dedicated to the production of 3 nanometer (nm) chips. They are the basis for next-gen processors in which companies such as Intel may have already expressed an interest.
https://www.notebookcheck.net/TSMC-holds-an-opening-ceremony-for-its-3nm-production-facility.506073.0.html
This sounds great, and 15% better performance with simultaneous 30% power savings really sounds promising, but I have doubts. The last several years there have been multiple improvements in both transistor size and chip architecture that have each made similar promises, yet somehow today's laptops last about the same as those several years ago. Granted, some of that is likely due to smaller batteries in order to make them thinner and lighter, but each time I've seen claims of improvements like this my first and main thought has been hope for longer lasting laptops but, with few exceptions, it doesn't happen.