So if it is true that all matter aside from hydrogen and maybe helium and some elements up to iron come from supernovas, how many supernovas would it take to create the quantities of matter we see surrounding every single star? Not to mention the multitudes of rogue planets wandering around. And all this matter being madly dispersed by supernovas at very high velocities. It must be trillions of supernovas. And all in only 14 billion years? Lets’ say tons of gold are created. This gold disperses at extremely high temperatures in all directions. How does it later coalesce together into lumps. And how do other elements recombine? Wouldn’t it all just be in a generally dispersed cloud? Why would it ever collapse together again? Certainly gases don’t collapse together. It’s a convenient explanation for star formation. But gases don’t behave like that. Hydrogen in a vacuum just disperses.
Questions questions.
Some 90% of newly formed stars is hydrogen. Most of the rest is helium. Gravity causes those gases to collapse into stars.