Effective field theories for hydrodynamical systems

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will review EFT techniques that have been developed recently for
dealing with the infrared dynamics of ordinary fluids and of superfluids.
Gravity does not play an essential role in the construction (though it can be
added straightforwardly to the system), yet certain applications resemble very
closely the EFT approach to gravity wave emission by binary systems. I will
describe in some detail one such application, as well as a possible application
to cosmology.