I think given the pace of technological advancement and given how every generation we see at least one major piece of electronics completely wipe out generations of predictions, this statement doesn’t serve a productive purpose other than to make “I don’t agree” sound like some variation of “it’s an objective fact that what you said is impossible.” You’re just spiking the conversation, even if that is not your intention.
I didn’t say this is definitely going to happen. I’m just saying clearly the way we engage with computers is shifting and that means companies will adjust accordingly. It’s not that far fetched.
As for “within any reasonably predictable future timeframe,” for all we know YouTube will become a relic.