Those sound like different questions. The original is asking if it is theoretically plausible. I don’t think that’s out of line.
While I do see - and to an extent agree with - their point, I there is a lot more wrong with that heading than just the lack of a contextual end date.
Or, somewhat more plausibly, some theory or technique that constitutes a minor subfield right now but could be the next big thing in another 20-30 years, or whenever someone just makes it really fast.
Ever applies more for something with an indeterminate future imo.