The Ethereum Fusaka Upgrade Goes Live Today

This upgrade could mark the beginning of ETH’s next major supply squeeze — and most people still don’t realize how big this is.
Fusaka bundles Osaka + Fulu + PeerDAS, but its real impact is simple:
**It finally fixes Ethereum’s biggest economic flaw.**
For years, Layer 2s have used Ethereum’s security while paying almost nothing back.
Base, Arbitrum, Optimism, zkSync — all collecting millions in fees — yet when they posted data to Ethereum, blob fees collapsed to near zero.
Result?
L2s exploded, but ETH burn didn’t.
Even though 85% of all Ethereum activity now happens on L2s.
Fusaka flips this entire model.
### What Fusaka Actually Changes
✦ 1. EIP-7918 forces L2s to pay real fees to Ethereum
Every L2 transaction now contributes to ETH burn.
This is the biggest economic shift since EIP-1559.
✦ 2. ETH burn expands from L1-only to L1 + all L2 activity
Before: ETH became slightly inflationary because L2s reduced L1 demand.
After Fusaka:
• Every blob has a minimum cost
• That cost is burned
• More L2 adoption → more ETH destroyed
Ethereum gains a new burn engine powered by the entire rollup ecosystem.
✦ 3. ETH may return to deflation for the first time in years
Currently:
• ~620k ETH issued per year
• ~350k burned
→ Slight inflation
Post-Fusaka conservative estimates:
• L2 burn adds 200k–400k ETH
• Burn totals 600k+
→ Flat or mildly deflationary
Bullish models:
• L2 adoption surges
• Burn reaches 900k–1.2M
→ Supply shrinks by 200k–300k ETH/year
Ethereum starts looking like a digital stock with constant buybacks.
✦ 4. PeerDAS turbocharges L2 growth
PeerDAS cuts bandwidth by ~85% — meaning L2s can publish far more blobs at lower cost.
More blobs → more fees → more ETH burned.
✦ 5. Gas limit jumps from 36M → 60M
More space in each block = more mainnet transactions = more base fee burn.
✦ 6. L2 fees drop dramatically
Cheaper swaps, bridging, gaming, social, everything.
Lower fees → more usage → more blobs → more burn.
Ethereum is now directly monetizing its own scaling.
✦ 7. Ethereum + Rollups Finally Align
Before:
L2 growth made $ETH inflation worse.
After:
L2 growth *reduces* ETH supply.
This is why many call Fusaka the upgrade that unlocks real value capture.
Ethereum isn’t just scaling anymore — it’s finally monetizing that scale.