oooh, more ways to measure temporal evolution, fun. this one is about showing how far from earth the news of an event has travelled if it set off at the speed of light the moment the event happened. so from the moment of my birth, how big is my light cone?

matt webb’s script shows that:

Kirsty’s light cone contains 49 stars. 12 Ophiuchi will be reached in in 2 months.

my light cone’s bigger than matt’s ;-)