I'm puzzled why this interest in the topic hit me all at once like a ton of bricks, whereas 6-months ago I didn't think much about it at all. For me, it's been

I'm puzzled why this interest in the topic hit me all at once like a ton of bricks, whereas 6-months ago I didn't think much about it at all. For me, it's been binary. I'm doing some catch up. :-)