When you think about it, what is one of the primary things our brains have to store? Our memories, of course!
I did some calculations on how big a video file you would get if you recorded 65 years of video straight, AKA most of your life.
Think about it, if 2 hours of 16Mbps (megaBITS, an eighth of a megaBYTE) video is about 14 gigabytes, and you do the rest of the math, (multiplying by 12 hours to get the size of a days worth of video, and on like that until you get to 65 years of video.) you'd eventually reach a size of exactly 4,099,680,000 (4 trillion) megabytes.
Now, to simplify it a bit, you can get that number down to 4,099,680 gigabytes.
Still too much, you say? Well, you can still get that number to 4,099 terrabytes (YIKES!)
Anyone who runs a big website should be familiar with a terrabyte, it is literally 1,000 GBs.
So, with 4000 TBs still too big, I researched on Wikipedia and discovered that 1000 TBs=1 Petabyte.
So, we finally the answer, 65 years of HIGH quality video=4 petabytes.
Wow, the human brain IS robust.
And of course, these numbers don't include everything else we store in our brains, knowledge, etc, but you must admire how big our brains really are
Note: There is NO ONE who can perfectly recall everything they've experience, so most of this "video" is probably lost. Also, since we sleep for about 10 hours a day, a huge chunk of the video is boring.Now I just wish I could watch my life video! Since I don't know any single person who has a petabyte hard drive , I can't

Not to mention my head doesn't exactly have a USB port...
Now, discuss your views on this subject...