The law of diminishing returns. Shrinking brings lower and lower benefits because the jumps may be hefty in relative values (10% smaller) but in absolute values

The law of diminishing returns. Shrinking brings lower and lower benefits because the jumps may be hefty in relative values (10% smaller) but in absolute values (nm) they don't bring the same benefit as they did 15-20 years ago. On the other hand, even in practical terms the older nodes are more than adequate for most customers these days simply because they are far closer to a modern node than the equivalent would have been 20 years ago (for the reason stated above).