Variable speed of light offers an intriguing explanation of the cosmological redshift: no material expansion, just light spreads. As a consequence, the beginning of the universe is better understood as an horizon of one elementary particle (Big Flash). Contrarily to conventional cosmology, the value of the nuclear density becomes meaningful.<br />...<br /><a href="https://www.youtube.com/watch?v=eSSDi22NVFo" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=eSSDi22NVFo</a>