Blockchain @arbitrum hit 2 billion on‑chain transactions this week, a milestone achieved only 4 years after its quiet 2021 launch Daily volume has grown from hundreds of thousands to 1M+ tx/day, even peaking at 2M after the Stylus upgrade reduced gas costs The L2 now secures >$4 B TVL, boasts 600 k monthly active users, and runs 49 Orbit chains totaling $20 B+ in ecosystem value DeFi protocols on Arbitrum are surging too, Morpho Labs reached a $485 M market‑size ATH, Silo Finance logged $113 M deposits, and Boros (Pendle‑backed) clocked $2.83 B trading volume & $4.7 B open interest in <3 mo Community builders celebrated the milestone, echoing “Here’s to the next 2 billion!”