I just read a short fiction dealing with the advent of perfect memory, and some of its pitfalls.
Any tool can be used poorly. Witness the other Labor Day home-project accidents that Robert Graham saw. The important question is what's the correct way to use a tool?
High fidelity memories will have foreseeable applications. However just like other big data troves, someone's likely to hack together something completely unexpected. And people will wonder how we ever got by without it.