I woke up today thinking of physics, because i had an exam in classical mechanics today. we are taking about collisions.  I thought what if what happens in black holes are inelastic collisions that appear to be singularities because the large mass of the black hole slows time down so much. so the collision take almost infinity time. what do u think?

if black holes sucked in space time folding it into other dimensions then wouldnt that account for dark energy?no sarcasim please

I was reading an article about an object 625 million LY away and I went wondering if the ligth does "decays" or "run out"  of energy sometime

i know the ligt and radio waves from distant stars reach very faintly to us most of it absorbed b the intrestelar media (dust etc.)

to create ligth you have to transfer energy to an electron in cuantic packets, so the energy that each photon have is limited rigth?

in a hypotetical infinite universe could the light travel forever?