 The first “problem of the direction of time” is: what accounts for the time asymmetry of thermodynamics? Thermodynamics is not a fundamental physical science. Hence it must inherit its massive time asymmetry from the microworld. But where? In virtue of what, fundamentally, is thermodynamics time asymmetric? The puzzle is usually said to arise due to fundamental physics being time symmetric, or more precisely, time reversal invariant. (A theory is time reversal invariant, loosely speaking, if its laws don’t care about the direction of time.) No asymmetry in, no asymmetry out; therefore there is a puzzle over where the asymmetry enters. However, even if fundamental physics is time asymmetric one can and should still demand an answer to the question of what accounts for thermodynamics time asymmetry. The answer could be non-trivial because the time asymmetry of fundamental physics may have nothing to do with the time asymmetry of thermodynamics. This situation actually appears to be the case, as weak interactions between quarks and leptons can violate time symmetry yet these violations don’t appear to be responsible for thermodynamic behavior.