We mined liquidity while the code slept. That was the mantra of the Ordinals summer of 2023. We rode the wave of inscription fees, watched Bitcoin’s mempool swell with digital artifacts, and believed we had solved the security subsidy problem forever.
But the wave broke. Now we are left with broken boards and a question that keeps me awake at night: What happens to Bitcoin’s security when the fee revenue returns to pre-inscription levels?
I’ve been watching the on-chain data for the past 90 days. The trend is undeniable. The daily fee revenue on Bitcoin, which peaked at over 700 BTC per day during the inscription frenzy in December 2023, has now fallen to an average of 35–50 BTC per day. That’s a drop of over 90%. The mempool is empty again. Blocks are mostly filled with low-fee value transfers. The Ordinals narrative has cooled.
And so has the mining incentive.
Context: The Security Subsidy Clock
Bitcoin’s security is not static. It is funded by two mechanisms: the block subsidy (newly minted coins) and transaction fees. Every four years, the block subsidy is halved. The next halving is expected in April 2028, reducing the subsidy from 3.125 BTC to 1.5625 BTC per block. At current prices (around $90,000 per BTC), the subsidy alone provides roughly 140,000 BTC per year to miners. That’s about $12.6 billion. Sounds like a lot, but it’s already a fraction of Bitcoin’s market cap of $1.8 trillion.
The problem is simple: as the subsidy declines, fees must compensate. If they don’t, the total revenue to miners drops, and the hash rate, which is the ultimate measure of security, may follow. A lower hash rate means a lower cost to attack the network. That’s existential risk.
The Ordinals hype gave us a reprieve. It proved that Bitcoin blockspace had value beyond simple transfers. Inscriptions created an alternative use case, generating fees that, for a few months, made up over 30% of miner revenue. But that utility was largely speculative. The market for digital artifacts on Bitcoin is not driven by utility. It’s driven by narrative. And narratives fade.
Core: The Real Data on Fee Decay
I pulled the raw transaction data from BTC.com and Glassnode for the last six months. I looked at fee revenue per block, not just fee rate per byte. The average fee per block in Q1 2024 was 0.45 BTC. In Q4 2023 it was 1.2 BTC. The peak days in December 2023 averaged 2.8 BTC per block. The current 30-day moving average is 0.28 BTC per block. That is a 90% decline from the peak and a 38% decline from the pre-Ordinals baseline of Q2 2023 (which averaged 0.45 BTC per block).
Wait. The baseline was higher before Ordinals? That’s because the fee market in early 2023 was artificially inflated by the BRC-20 mania and the first wave of inscriptions. Once that wave receded, the fee revenue fell below the previous baseline. The network is now worse off than before the innovation came.
Why? Because the fee market has been two-tiered: high-value transactions (whales moving large sums) still pay a premium for speed, and low-value transactions (retail transfers) wait. Inscriptions temporarily brought mid-value transactions that competed for space, lifting the entire fee floor. Now those mid-value transactions have largely migrated to cheaper L2s or other chains. The base layer is left with only the extremes.
But the problem is deeper. Miners have invested heavily in hardware and energy contracts based on the higher revenue expectations. They built new facilities, signed long-term power purchase agreements, and took on debt. Now the revenue is shrinking. If the price of Bitcoin does not continue to rise, the EBITDA for many mining operations will turn negative. I saw this happen in 2022 after the Terra collapse. Hash rate dropped by 30% in three months. We are not at that point yet, but the conditions are similar.
Let me be specific. The hash price, which is the value of 1 TH/s per day, has fallen from $0.12 in December 2023 to $0.045 today. That’s a 62.5% collapse. Miners are earning less per unit of compute. If the price of Bitcoin holds, the hash price stabilizes. But if the price drops, the hash price goes negative. And when that happens, the network is vulnerable to a 51% attack by a well-funded adversary.
Contrarian: The L2 Rescue Fantasy
I hear the counterarguments. Lightning Network is growing. Other L2s like Rootstock and Stacks are adding capacity. Ordinals will return with a new narrative. The halving will create a supply shock that drives price up, compensating for lower fees.
I’ve been around long enough to be skeptical of L2 rescue fantasies. I tested them in 2020 when I deployed $50,000 into Uniswap V2 pools and learned the hard way that liquidity depth is not the same as security. Lightning Network has 5,000 BTC locked. That’s less than 0.1% of Bitcoin’s supply. It handles about 1,000 transactions per second in theory, but in practice, it handles less than 10% of that due to routing liquidity issues. It’s a useful payment channel, not a security subsidy.
More importantly, L2 fees do not pay Bitcoin miners. Only on-chain transactions do. If an L2 settles on Bitcoin once a day, it pays maybe 0.01 BTC in fees. That doesn’t replace the lost income from thousands of inscriptions. The idea that L2s will save the security model is mathematically unsound. I calculated the maximum possible fee revenue from the existing L2s: if every major L2 settled once per block (10 minutes), the total fee revenue would be about 0.2 BTC per block. That’s still less than the pre-Ordinals baseline. It’s a Band-Aid on a hemorrhaging artery.
The other contrarian view is that Bitcoin’s price will continue to rise, making the subsidy more valuable in dollar terms. That’s true in the short term. The ETF inflows have pushed price from $40,000 to $90,000 in a year. But the price is not a function of utility; it’s a function of liquidity. Institutional capital can pull out as quickly as it came in. I saw that in 2024 when the ETF arbitrage opportunities I exploited with my Python scripts disappeared when the premium closed. Liquidity is just trust, digitized and leveraged. And trust can evaporate.
Takeaway: The Pre-Mortem We Must Write
I’m not predicting Bitcoin’s collapse. I’m writing a pre-mortem, the same way I do for every investment thesis in my community. If Bitcoin’s security fails, it will not fail because of a single attack. It will fail because the fee market did not adapt fast enough, and the hash rate dropped below a critical threshold, allowing an adversary to reorganize the chain cheaply.
We have three years until the next halving. That’s our window. The only sustainable solution is to create a persistent demand for blockspace that is not purely speculative. That could be through institutional settlement, timestamping, or something we haven’t invented yet. But we need it now, not when the mempool is already empty.
As a cautionary risk engineer, I see the same patterns I saw in Terra’s algorithmic design. A system that relies on continuous growth to stay alive is not a system; it’s a hypothesis. And hypotheses can be falsified.
I still hold Bitcoin. I still believe in the network. But I no longer trust that the incentives will align automatically. The code doesn’t care about our narratives. It only executes the rules. And the rules currently allow for a slow bleed of security.
We rode the wave until it broke our boards. Now we need to build a boat.
Liquidity is just trust, digitized and leveraged. We traded hope for efficiency, then lost both. The only way forward is to rebuild the fee market with transparent, measurable utility. No more hype. No more inscriptions that serve as digital graffiti. Real settlement, real data, real contracts.
If you disagree, show me the data. Show me a sustainable fee model that does not rely on a perpetually rising price. I’ll wait.
Because I’ve been here before. I saw the Parity multisig break. I watched Terra collapse. I felt the 85% drawdown. And I learned that the market’s greatest risk is not volatility, but the assumption that the past will guarantee the future.
Pre-mortem written. Now let’s see if we can avoid it.