We would all change the way we did some things if we knew what we know now back then. Ah well live and learn. This list is things that would be in a letter to my 13 year old self:

• There are desktop PCs every home.
• You will carry a device in your pocket that has more computing power than almost every other computer available to you. It will
  • Type in directions on the map and it will navigate you there turn by turn.
  • With the right app, you can play almost every arcade game, bit for bit. Much More about this below
  • Hold it on a wall in a room and it will give you the exact dimensions of said room. In about 5 seconds.
  • Oh yeah, it's also a wireless phone. Yes you now are able to video talk.
• The sheer abundance of data available is almost incomprehensible, you can relive almost any hobby you'e had. For example:
  • Emulation
  • Scanning Mags
  • Encyclopedias are now obsolete. Just type a question in the search engine and there ya go.