"Obviously, guys like Chris Froome can't ride forever, but kids like Simon Yates, Adam Yates and George Bennett are going to be factors and potential Tour winners in the future."
Today, he was mourning Bennett's early departure.
"I hope we didn't jinx him," rued Armstrong.
"He's a young guy, he's a small rider ... you never know why or how somebody gets sick, and he got some sort of chest thing.
"This is not a human event, this is an inhumane event. What they put their bodies through is unlike anything that the world of sports knows, so it's easy to get sick."
Armstrong has had a soft spot for Bennett, since the Kiwi, now a Tour of California winner, rode on his Trek Livestrong development team in 2011.
"In the coverage, you saw he was off the back and then he just pulled the plug, which was sad to see," he lamented.
"I've still got stock in George Bennett - he's still an exciting one to watch."