Even better, if you want to blow the mind of even most tech people, show them a high capacity MicroSD card and tell them how many 1's and 0's it can REALLY store.

SD cards are many, many times larger than you think they are - often hundreds of times larger. This is because they use wear leveling to avoid read/writing too much to any one bit.

It is quite possible that this one SD card could have hundreds of TB of storage space on it. I have often wished there were some easy way to access all of this space for situations where you know that you only want to write once to the card - meaning you know you only want to write once. Would be great for storage.