Population flows, old and new, come together

In the movie "Call Me by Your Name", people from the new world go to the old world to find their own history (archaeology) and at the same time inspire local young people with their casual ideas in the new world. Is this set of films set in the 1980s, is the world's population flows 40 years later?

https://artsandculture.google.com/entity/m08r5_3?hl=en-TW

a volt line?

I stayed in the Northern UK for more than ten days. I came to the UK for tourism 8 years ago, and the deep stay was more than 20 years ago. I have lived in the Northern for 3 consecutive years. When I come today, I will ask what is a British? If you have never been to the United Kingdom, the foreigners (whites) you have come into contact with in Hong Kong are British, such as the previous Hong Kong Governors 97 years ago. If the concept of "Hong Kong people" started from the government's issuance of identity cards to legal residents in 1976, that is, "British people" should be based on their passports, not their appearance, so they can include many different ethnic groups.

This time in Manchester city center, the most people I see are new immigrants from Eastern Europe and East Africa, and when you take the tram to the zone 4 area, you will see beautiful young immigrants from Eastern Europe on the bus. And can be called "natives", most of them are Indo-Pakistani. Most especially in some business districts, I see many Americans, so there are many Starbucks in the city and some supporting facilities for their living style, such as gyms, American bars, very popular hamburgers, burrito, doughnut and so on. I don't know if Americans come to live in Manchester City because of the direct flights to Manchester City from Frankfurt and Munich in Germany. Or was it because Germany had a policy in the past few years that Germans in the United States could return to Germany to take back their residency and citizenship, so they also came to live in Manchester? Is this the reaction of some countries because of the scourge of war brought about for many years before Israel was colonized by the American church (according to some media reports that they originally lived in these areas, immigrated to the United States, and then hoped to return to these areas with the help of the church) ?

I only know that the city of Rome was not built in a day. Brompton, the representative British bicycle brand, also released electric bicycles. People from the new world and the old world get together to live together. Will everyone enter the new era together?

(Population flows: history teaching by Council of Europe

https://www.coe.int/en/web/history-teaching/population-flows)