Thoughts
People say Rails doesn't scale, but I don't think the issue is with Rails. I think relational databases don't scale. They scale in the
number of records, but they don't scale in the number of datapoints being tracked, and both increase linearly with the size of a business. So you either end up with 1000 columns in one table or 1000 tables (or both). And you're like "man I should have used a wide column store or a data warehouse."