I've made a photo show of the Kiev portion of our trip. It can be downloaded from here for the next 7 days. Be sure to save it with a .exe extension. (And, sorry, this is a Windows executable.)
There's music, so have the speakers on.
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Random thoughts and anecdotes, hopefully with some direction.
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About the blog title...
In addition to being a fairly straightforward metapor for how I think and write and learn, Drift and Diffusion are mathematical terms. "Drift" is (usually) a deterministic effect like Newton's laws and "Diffusion" is a random effect like molecular bombardment.
The most picturesque description I know is the route of a dandelion seed in a stream. The current is drift, and all the while water molecules are causing tiny oscillations that keep the motion from being predictable and smooth. Such mathematical models played a role in my (fading) thesis work, and in quantitative finance.