Quantum effects haven't been relevant for a while now. The "nanometer" numbers are marketing around different transistor topologies like FinFET and GAA (Gate-a

Quantum effects haven't been relevant for a while now. The "nanometer" numbers are marketing around different transistor topologies like FinFET and GAA (Gate-all-around). There's a published roadmap out to "0.7 eq nm). Note how the "measurements" all have quotes around them: https://www.extremetech.com/computing/309889-tsmc-starts-development-on-2nm-process-node https://www.extremetech.com/computing/309889-tsmc-starts-dev...