Marginal Value Theorem Patch-Departure Simulator

Raise the travel time between patches and watch the optimal patch residence time (where the tangent line touches the intake curve) shift.
Optimal residence time: — min  |  Optimal long-run intake rate: — units/min
The tangent line runs from (−travel time, 0) through the point where it just touches the diminishing-returns intake curve — that touch point is the predicted optimal giving-up time.