My family of five jumped in the minivan, in Colorado, on Thursday morning. We drove 1,000 miles on the first day and 700 miles on the next to get to our hotel. On Saturday morning, we stood in line with 10s of thousands of people for 3 hours to get on the metrorail and ride into DC for the rally. Tens of thousands showed up almost 2 hours late because of the backup.
If the 500,000 crowd estimates are accurate, and having been there, I believe they are, that means that 1 out of every 620 people in the United States attended the rally.
You're right, that's a lot of intensity