Germany, I think, was first to substitute a Social Security program for its elderly based on this premise, that is, that we would tax workers to pay retirement benefits for those retired. ↗
A changeling is one child substituted for another. I couldn't find anything more apt. We had to kind of fight that supernatural element in the publicity, and I offered to try and find another title, but Clint liked it, and it stayed. ↗
I'll tell you one thing, in what I do for a living, there's no substitute for experience. I don't care how much natural talent you may have... In the type of show I do, you can depend on surprises. ↗
A computer does not substitute for judgment any more than a pencil substitutes for literacy. But writing without a pencil is no particular advantage. ↗