As some of the approaches like 3D stacked NAND, QLC, etc. mature I think we'll see a big jump sooner than that - technology advancements are likely to bring step changes along the way out of sync with the smoothed longer term trend line of NAND capacity/price. I'll be surprised if approx. 8TB solid state isn't getting close to those kind of prices in 5 years (probably more like £300) and within those prices in 10.
I don't think we will. Size isn't the big driver it's speed for some reason even though speed is already at levels past what's required for the home user.
You can get a 1TB nvme M2 for around £90-£120 on a deal.
I don't see why anyone requires a 20TB SSD drive tbh.
Why would you possibly need that speed and storage in a home setting?
Look at consoles. I think the PS3 came with 40GB.
PS4 came with 500GB.
Ps5 came with a 1TB drive.
Next console your looking at 2-4TB in 7 years time.
After that your looking at 5-6 TB in 15 years time.
So realistically speaking advanced pc users in 20 years minimum will have 14-16TB SSD drives. Which will be more than double that of consoles of the time.
Which is the case today. What size of SSD does the average pc gamer have?
I'd say 250GB-500GB SATA drive is the most common. Only advanced users have 1tb or 2tb SSD.
I just got an Asus laptop and it had a 250gb nvme M2 drive for instance. I upgraded to 1tb but only because a good deal was on otherwise I'd have just shoved a 500gb sata in the spare slot.
I don't see us having 14-16TB SSD for a long long time. Not in a normal sense where it costs £200 or less and is therefore mainstream.
They will have them in Amazon data centres sure. But I'm talking specifically in the average advanced users pc.
Even a 16tb mechanical drive is not a normal purchase only a handful of people will actually own one.
How many people do you know that requires that amount of storage?