This is some remarkably long-term planning: "If construction goes ahead as planned, the majority of the foundations for the island off Denmark's capital should be in place by 2035, with an aim to fully complete the project by 2070." I can't recall ever seeing the year 2070 or later in print, in the context of some definite project or plan. Are there other examples?
Dams, skyscrapers, military bases, housing mortgages, bonds, business contracts, commercial leases, land/resource/farm leases. Lots of things have 50 (or longer) year plans, contracts, payoffs, repayment schedules, and so on. Here's Austria's recent 100 year bond (paying a comical 0.88%): https://www.bloomberg.com/opinion/articles/2020-06-24/austri... The deal on Hong Kong was supposed to be 50 years, with it operati…
Good engineering and craftsmanship.