Dammit I must have clicked outside my subscriptions again.
So anyway here's a reminder that if you take a stellar lifetime and map it down to something like a human lifetime, the relative slowness of the speed of light mostly goes away, down to something within an reasonable approximation of the speed of sound in air, give or take.
This means that stars, at least in close proximity to each other, could theoretically be having conversations (by means of light across vacuum) that to them, don't seem to take all that long at all.
And they have all that boiling mass doing who knows what and so much real time to think...
I admit it's been a while since I did the calculations so I must have misremembered the speed of sound part.
Trying again now (with less brain than I once had) I think you could still get a few million intercommunications between stars hundreds of light years apart within their lifespans, and stars only a handful of light years apart could be even more chatty.