Deal with 'double door' effects because our read and write rate limiting are independent

In sponsor F deliverable 2 we promised to "build and execute a plan for proposal 182" and to "figure out how it does or does not relate to the N23 congestion control design, to Ian's ideas about Defenestrator, etc."

There are a couple of subtasks to work on here:

Review proposal 182 and reword any unclear parts.
Review any existing patches for proposal 182 and update them for merging them into master.
Run simulations of proposal 182 using ExperimenTor and Shadow.
Make a list of designs that are related to proposal 182.
Compare proposal 182 to related designs.

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