Bitcoin's Layer 2 landscape is getting pretty crowded these days. Lightning Network delivers impressive speed for transactions, yet it's struggled to carve out meaningful DeFi participation. Stacks has been around longer with a solid ecosystem backing, though its focus skews heavily toward mining incentives.

Then there's Mezo Network—it's doing something different. Positioning itself as an Economic Layer, it leverages Proof of HODL as its core mechanism. Instead of relying purely on miners or validators, it taps HODLers themselves to secure the network. That's a shift in how we think about L2 consensus models. Worth watching to see if this approach gains traction.