We will soon release a new version of the quantecon package with a new Timer context manager.

Details of the implementation can be found here: QuantEcon/QuantEcon.py#783 (review)

We need to go through the lectures updating any tic, tac, toc timing comparisons to the new Timer

We also need to review the surrounding text to make sure the timing comparisons are still relevant. For example, the next sometimes discusses a certain code-cell runs X times faster than another, so we should check that logic still works after we migrate to Timer.