Poetry is true. The psalms are poems. Therefore the psalms are true.

And in today’s lesson from the Invisible Magic Friend’s holy virus, you have to let other people break the social distancing rules otherwise you won’t be able to break them either.

Lots of people have died from the Invisible Magic Friend’s holy virus. Many more are left grieving. But it’s OK. They’re all living on in heaven and we’ll all be happy together forever.

So all those grieving relatives ought to be really happy. What’s wrong with them?

After the runaway success of part one (it’s had literally a dozen views!) here is part 2.

Here I introduce the idea of “measurement operators” and why it is that their eigenvalues are the only allowed measurements and their eigenvectors are the only states with definite values.

Next week I’ll introduce operator equations. These are one of the prime ingredients that we’ll need to eventually build the Schrodinger Equation.