Immutability and privacy are key ideas in the blockchain space. Can they help us overcome the poor quality of our memories and of our bodies of evidence?

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** Emendment: I misspoke in the aside on Aryan Migration, where I meant to say "Aryan Invasion." I don't deny many aspects of Indo-Aryan Migration theory from linguistics and other disciplines.

* All music is my improvisation, except for the theme by J. Dickinson. Some improv alludes to that theme and to themes from Prison Break (Djawadi) and Scarbo (Ravel).