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**Abstrant.** The value of things is inversely correlated
with their computational complexity. "Real time" machines, such as
our brains, only run linear time algorithms, and there's still a lot
we don't know. Anything we learn about things doable in linear time
is truly valuable. Polynomial time we can in-practice run, even if we
have to wait; these things are still valuable. Exponential time we can
play with, but just a little, and exponential things must be beautiful
or philosophically compelling to deserve attention. Values further
diminish and the aesthetic-or-philosophical bar further rises as we go
further slower, or un-computable, or ZFC-style intrinsically infinite,
or large-cardinalish, or beyond.

I will explain some things I know about polynomial time knot polynomials and explain where there's more, within reach.

**Handout:**
PP.html,
PP.pdf,
PP.png.

**Sources:** pensieve.

In Canberra: 150708.html.