From an ad I keep seeing in my FB feed.
"Nanoscience is driving a major sea change in electronics."
Is it possible to have a minor sea change? Isn't a sea change by definition major?

Yes.

quote:

Originally posted by Geoff:
Yes.

To which question?

Oh, sorry. A sea change IS by definition major, unless someone says it's not. Prescriptivist Geoff says it is.

I see "sea change" as major as well - a 180 degree change in whatever is changing.