I would have my hard disc sealed and filled with water.
Add more water to get more space.
Storage costs will be down the drain.
Imagine the cool thumb drive with water.
How to do it? Well I thought of that.
The Water molecule is H2O, Two hydrogen atoms (two electrons) and 1 Oxygen atom.
If we can (by any means) save one digital bit (0 or 1) in each electron of the Hydrogen atom. In 1 liter of water I would be able to save 7606104190927 Tera Byte (TB), (1 Tera = 1024 GB)
Here is the math:
In 1 liter of water
= 334.52*1023 Water molecules.= 334.52*1023 * 2 = 669.04**1023 Hydrogen electrons = 669.04*1023 Bits (We said we'll save 1 bit in each electron )= 669.04*1023 /8 = 8363000000000000000000000 Bytes
= 8166992187500000000000 KiloByte
= 7975578308105468750 MegaByte
= 7788650691509247 GigaByte
= 7606104190927 TeraByte= 7606104190 PetaByte= 7606104 ExaByte= 7606 ZettaByte= 7.6 YottaByte
That's in 1 liter of water.
In a water drop (about 1 micro liter) I can save 7 ExaBytes. That is approximately equal to all words ever spoken by the human beings. And I didn't touch the oxygen atom yet.
The limitations are many I guess, but the world after that idea is prosperous isn't it?