/sci/ - Science & Math

>>8561834
The answer is 'maybe' to 'probably' right now. Some time from now 'space' of the universe may be expanding faster than the speed of light. Current consensus is that means that no information from neighborhood galaxies will ever reach us, and for eternity we will see almost perfectly black nightsky. My bet is we don't know of some matter (might be what we right now call dark matter) or waves residing in much of what we consider vacuum, therefore effect, even thought insanely minor in a short span, would be almost instantaneous.

>>8553006
>comparing rocks eroding to genetic mutation and natural selection

Suppose I have a categories [math]C, D[/math] and a functor [math]F:C \to D[/math].

Is there a formal construction for the category of objects of [math]C[/math] decorated with the objects of [math]D[/math]?