Moment

I used to go by a different name. It’s been so long that I’d nearly forgotten. The other day, I was out somewhere when someone said the name. I turned because it seemed like someone was speaking to me, and they were.
 
I didn’t recognize it at first. It took my mind a few seconds to process, during which the person said, “I’m sorry, I thought you were someone else. Someone I grew up with.”
 
“I used to go by that name,” I said.
 
She identified herself. I used to be friends with her father. She’d been a child then. Now she had five children with her.
 
We didn’t know what to say to each other except, “It’s great to see you.” Maybe she’d only said my name out of the shock of seeing me, after all these years.
 
Life is strange. Our independent lives hurtle onward as people pass in and out. Sometimes I see a shadow that I used to know, but I don’t say anything because part of me doesn’t want to be wrong and part of me doesn’t want to be right.
 
“Thanks for coming, mind your step on the way home
The roads are busy, tonight just pick the ones you know
Thanks for calling, mind your step on the way home
Find a God and thank him” — Therapy?, “The Boy’s Asleep”

A Writer

A writer writes: That’s what writers do
If you’re writing something, then you’re a writer too
Whether it’s a fiction, biography, or poem
Or just a love note meant for a partner back at home

Sometimes we overthink things, and sink inside our gloom
That to be a proper writer, we’re locked inside a room
Devoid of human contact, filling reams with stoic prose
Dripping with treacle and ennui lachrymose

But that can lead to silence, a mental block, and worse
Until we’re tripped up tripping through convoluted verse
Remember that a writer writes: That’s what writers do
If you’re writing something, then you’re a writer too

— ptkh 061417

Triangular Gaps

There is an unfortunate gap in the triangle congruency theorems. It would be nice to be able to say that we can declare that two triangles are congruent based on a pair of sides and exactly two other bits of information, but we cannot.

If we can match up all three pairs of sides as congruent, the triangles are congruent.

If we can match up two pairs of angles and one pair of sides, the triangles are congruent.

If we can match up two pairs of sides and the angle between them, the triangles are congruent.

If we can match up two pairs of sides and a non-acute angle, the triangles are congruent.

But if we can match up two pairs of sides and an acute angle not between them, then we could be describing either of two triangles.

This gap is painful to the mathematician who prefers clear order.