This is a great explanation, up until the last part, which is slightly misguided.<p>&quot;So even if the universe were infinitely old as well as infinitely large, it would not contain enough fuel to keep the stars shining forever and to fill up all of space with starlight.&quot;<p>If the universe were infinitely old, fuel was consumed, and fuel had finite density, then the sky would be completely dark.
Because there would be no starts.<p>The author is really just thinking &quot;It would require infinite time to receive light from infinitely far away.&quot; Which is the relevant answer to the paradox.