We chose for this post to go on the Forums because we want to rapidly update it with more info and answers to questions over time. The Developer Hub doesn’t lend itself to that very well. We had a lot of great questions and topics come up in the Physics Survey and Discussion post last month, a lot of which is addressed here, and want to continue addressing these kinds of questions as they come up across the forums over time.
This post will absolutely get put on the Developer Hub later, just not right away.