Llama.cpp 30B runs with only 6GB of RAM now

Does this mean that we can also run the 60B model on a 16GB ram computer now?

I have the M2 air and can't wait until further optimisation with the Neural Engine / multicore gpu + shared ram etc.

I find it absolutely mind boggling that GPT-3.5(4?) level quality may be within reach locally on my $1500 laptop / $800 m2 mini.

I doubt it: text size and text pattern size don't scale linearly.