His research.
His interactions with his NYT editors.
The emails he sends reporters about their articles. Daily.
TV shows.

Why are you asking, OP?

Anything and everything. Married 26 years.

Never house repairs

Old episodes of Dateline. Mahjong group drama. The weird thing our neighbor did (why is he walking his cat today?).

We always each describe an happy event or moment in our day. Not easy every day but we have learned to find annd share these even on difficult days.

politics, shows we watch, fun things we want to do, restaurants we want to try, the people in our lives, reminiscing

Books
Art
Music
Interior design
Travel
Gossip
Work
TV/movies
And just about anything and everything

Married 46 years. We talk about current events, art, science, nature, books, etc. We are also very comfortable in silence.

Pretty much anything and everything. We have lots of shared interests and a similar sense of humor. We still talk about the kids but in a totally different context than every day parenting.

This phase of empty nesting has been rejuvenating in remembering how much we enjoy spending time together, just the two of us.

We talk about everything. Married over twenty years w two adult children.

We are retired, but have hobbies amd activities, some together and some separate. We talk about those, and upcoming travel plans. Also about our elderly parents and managing their care

Politics
Sports
Crime
Music
Movie
Series
Our day

At our age we repeat the same stories over and over. I guess that's why they call it growing old together.

What do you and your spouse talk about?
Over dinner?
In the car? Or whatever, wherever..

That is not about your kids, house repair issues, the pets.
Or, do you not really talk, and why is that?