The recent run-up to Jan 3 got me digging into Lightning more intensely. It's so deep! Especially, the idea of a channel, and the weird dynamics of channels, and the extremely non-intuitive (to me) idea of inbound vs outbound capacity have captured a lot of mental cycles.
I woke up this morning thinking about channel capacity in real life. Like, the people I have channels to, and the relative flows in those channels. In particular, how much inbound capacity there is. Inbound is the hardest to think about for some reason - creating circumstances where someone reaches out to you, gives to you. What that feels like, what depends on it, the tools you have to bring it about.
In (relatively) recent times, in Lightning, you can just buy inbound capacity. You pay someone to pay a bit of attention to you, to allocate attention to you, for a while. In theory, they could keep the channel open -- it could prove a good idea to keep those resources allocated. What would it take, to make it worth the trouble?
What about in real life? What about the inbound capacity of the friend you made a year ago? What about the friend you've had for twenty years? What's the nature of the channel maintenance in these cases, and what's gained and lost as channels come and go?