I’m not buying tickets yet, this is my belief and hope about what is going to happen.

It’s great to see the light at the end of the tunnel. Perhaps it will be a bit later but I strongly believe this will be possible.

Will only do it once scientists recommend and countries are welcoming me. I could travel today as a Norwegian citizen and green card holder, but that would not be very smart and nice so I’ll wait for answers similar to your questions.

I re-read my comment, and I realized how impersonal it was. Of course, there is a science-first way of thinking of things and then there are practicalities of being with family. I just traveled from the US to Eastern Europe and back for a family emergency. I spent two weeks with my elderly mother deciding it was OK to potentially expose her based on on a three-day-old COVID test. (There really was no other choice, and luckily all turned out well.) Maybe, even with vaccines, it's all about managing risk to the best of our abilities and dealing with the unknowns.

I think your comment was fine :-)

I don’t have a source to link because I’m feeling lazy, but I do recall hearing today from the CDC director that there’s some preliminary evidence that vaccinated people don’t transmit the virus basically at all

By that time (4th of July) most people in Europe will be vaccinated as well.

Europe has been slower on the rollout than USA. I'd give them 3 extra months compared to USA, maybe October or so.

Once the USA is largely vaccinated, all of the supply the USA was buying up can pour into other countries.

Vaccine supply is still increasing. I think by end of summer it will be fine, but hard to tell right now.

Supply is increasing. Europe will actually be on par with US by end of summer.

I hope so, but the way things are going, I doubt I'll be able to get it this year at all.