Jewish Poker

For quite a while the two of us sat at our table, wordlessly stirring our coffee. Ervinke was bared. All right, he said. Let’s play poker.

No, I answered. I hate cards. I always lose.

Who’s talking about cards? thus Ervinke. I was thinking of Jewish poker.

He then briefly explained the rules of the game. Jewish poker is played without cards, in your head, as befits the People of the Book.

You think of a number, I also think of a num­ber, Ervinke said. Whoever thinks of a higher num­ber wins. This sounds easy, but it has a hundred pit­falls. Nu!

All right, I agreed. Let’s try.

We plunked down five piasters each, and, leaning back in our chairs began to think of numbers. After a while Ervinke signaled that he had one. I said I was ready.

All right, thus Ervinke. Let’s hear your number.

Eleven, I said.

Twelve, Ervinke said, and took the money.

I could have’ kicked myself, because originally I had thought of Fourteen, and only at the last moment had I climbed down to Eleven, I really don’t know why. Listen. I turned to Ervinke. What would have happened had I said Fourteen?

What a question! I’d have lost. Now, that is just the charm of poker: you never know how things will turn out. But if your nerves cannot stand a little gam­bling, perhaps we had better call it off.

Jewish Poker by Ephraim Kimshon

What just happened? by Hendrick ter Brugghen
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Sustainability, climate change and intersection cohomology

While I ponder one of my great loves, intersection cohomology, and a cat meows in protest because I can only really think while pacing around, which prevents cuddling (apologies also to the neighbors living below me), I want to discuss, for a second, the issue of sustainability.

Oh my perverse sheaves, why have you forsaken me?

There are immediate things we can and have to do to preserve the planet, such as more sensible and sustainable encounters with our waste, our energy, or transport, with respect to what we eat and what and how much we buy. Most of what we buy and produce is not actually needed, and that includes the hyperloop (which is an interesting engineering project at best).

But these notions are obvious (well, they should be). Then why is it still getting pushback, why are changes slow?

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