10TB is about 80 times that, 200K in today’s money. A lot of capacity is coming online in the next 5 years and it’s reasonable to think we can get there with better process and stacking (the latter does little for pricing, but enables shorter latencies).
SOCs with unified memory have shifted this a bit forward, but they're also expensive as shit.
10TB ram in a consumer device is simply not happening in the next 10 years.