ZK-Rollups vs Optimistic Rollups: What's the Difference?

If you’ve spent any time exploring how Ethereum scales beyond its base layer, you’ve probably encountered these two terms batted around like they’re interchangeable. They’re not. The difference between ZK-rollups and optimistic rollups isn’t just semantic—it represents fundamentally different philosophies about securing blockchain transactions, how fast users can access their funds, and what compromises developers…