(In the far future) if Google Glass could automatically upload video of what you're seeing to your cloud storage, you could have a searchable log of your entire life.

Reminds me of these projects:

http://en.wikipedia.org/wiki/MyLifeBits

http://en.wikipedia.org/wiki/Microsoft_SenseCam

Maybe a V1 of this could have Google Glass take a photo every minute. You could upload it automatically to Evernote or your private G+ photo feed. Then, you could occasionally review and "star" the important moments of your life (and maybe even delete/summarize chunks that are less important).