1. Occam’s razor.
2. Send those “scientists” back to school.
3. Duh. How far back do you want to go? The Big Bang? I thought we were discussing planetary origins, not cosmology. How could I be so off-base?
4. An event that must generate tremendous heat. For someone who claims ignorance of planetary processes, you all of a sudden seem to know something. This is quite remarkable.
But, FYI, most recent planetary formation scenarios postulate relatively cold processes. The ball of molten rock scenario has been pretty much debunked.
Rocky planets are in fact the exception in this solar system. Half of our planets are gas giants. Mercury would be a moon if it orbited Jupiter or Saturn, and it would not be the biggest one in either case. Venus is a mystery, but it is considered a rocky planet as is the Earth. Mars is considered an embryo that did not merge with enough material to become an Earth sized planet. So much for your supposition that it is an "ordinary rocky planet."
But in which solar system? Our sun is one of 200 billion in a small galaxy, which is one of 170,000,000,000 in the observable universe. You've based your assumption on roughly 1/34,000,000,000,000,000,000,000 of the observable evidence. If you plucked twenty molecules out of a playing card, you would not use them to predict that you will be dealt a royal flush.
2. Send those “scientists” back to school.
The "scientists" were cited the source article.
3. Duh. How far back do you want to go? The Big Bang? I thought we were discussing planetary origins, not cosmology. How could I be so off-base?
Elements heavier than lithium form in super novas. A super nova forms the accretion disk that becomes a new sun and planets. Carbon, iron, magnesium, etc. were not formed in the big bang, they came much later. You are off base by several billion years.
4. An event that must generate tremendous heat. For someone who claims ignorance of planetary processes, you all of a sudden seem to know something. This is quite remarkable. But, FYI, most recent planetary formation scenarios postulate relatively cold processes. The ball of molten rock scenario has been pretty much debunked.
If I had said it formed from a ball of molten rock, you would have a point. But I didn't say that and you don't. Planetesmals form into planets through impact, accretion, and merger. All of these are kinetic processes between massive bodies and all of them produce heat, as does the increased gravitation caused by the increase in mass. Think of Tunguska. That was possibly a 100 meter object. The energy release was comparable to a 30 megaton H bomb. A planet is made up of tens of thousands of those.