I’m in a similar boat of my name not being a big deal to me (also male). However, if a name is arbitrary, why should you change it? If it doesn’t matter whether it’s your original name or the name of your spouse, why on earth go to the trouble of changing it in the first place? “That’s how we’ve always done it” has never really held much water for me as an argument. If it’s of merit, it should stand up to scrutiny without the appeal to tradition.

However, to many people, names aren’t arbitrary. From a historical point of view, marriage used to be considered a transaction of property, and a woman’s last name had the connotation of ownership. Were I a woman, I would find that quite abhorrent, and even though that connotation has diminished I still don’t think I could stomach it.

For some specific cases, names hold recognition. I’m a singer and have friends & mentors for whom performing is their full time job. To change your last name after building name recognition can do serious harm to your fame, and thus income. So most of them in that situation will retain their maiden name for job security more than anything.

It’s not contradicting itself though. Your first quoted statement says “using high-resolution scanners”. The last one says “conventional MRI studies”. The methodology is what is different.

https://en.m.wikipedia.org/wiki/Redshift#Blueshift

Essentially yes