> may be only a few thousand days out

This is actually quite clever phrasing. "A few thousand days" is about ten years, assuming normal usage of 'few' (ie usually a number between 3 and 6 inclusive).

Now, if you, as a tech company, say "X is ten years away", anyone who has been around for a while will entirely disregard your claim, because forward-looking statements in that range by tech companies are _always_ wrong; it's pretty much a cliche. But phrasing as a few thousand days may get past some peoples' defences.