Hoskinson thinks the data center boom is going to bust

An overbuild heading for dark data centers

@Cardano founder Charles Hoskinson (@IOHK_Charles) says the AI data center boom is heading for a bust, and he has a historical analogy to back it up. Speaking on the deeptech INSIGHTS podcast hosted by Sascha Roehrer on September 16, 2026, Hoskinson compared the current infrastructure buildout to the 1990s fiber optic overbuild, where roughly 90 percent of capacity sat unused with no customer behind it. He expects the same outcome here: dark data centers.

Electricity constraints and the need for companies such as OpenAI and Anthropic to become profitable at scale are supporting factors in that argument, not the core of it. The core is simple: the industry is building far ahead of demand. As pre-training costs prove unsustainable and the economics shift, Hoskinson expects compute to move toward the edge rather than remaining concentrated in large centralised facilities.

His alternative is specific. Rather than building new data centers, he argues that blockchains could pool existing GPUs and smartphones into a distributed network, effectively creating what he describes as the largest supercomputer in the world for pre-training, without laying a single new brick.

Crypto absorbs AI, a billion new users, and $10 trillion onchain by 2030

Hoskinson's broader thesis is that crypto will absorb AI within five to ten years. He argues blockchains already solve three of AI's core challenges: payments between agents and systems, alignment through transparent shared rules, and data provenance so the origin and integrity of information can be verified.

On the payments question, Hoskinson pointed to how AI agents have no concept of clicking ads or building brand loyalty, which he says will force publishers toward micropayment models. He cited pulling a New York Times article for a fraction of a cent as a practical example, with stablecoins and the x402 standard as the settlement layer. The x402 protocol embeds stablecoin micropayments directly into web requests and has emerged as the leading agentic payment standard in 2026, with the Linux Foundation taking custody of the open-source protocol in April of that year.

On the long-term outlook for crypto itself, Hoskinson forecast that roughly $10 trillion of assets and value will enter the space before the end of 2030, with a billion new people coming onchain in the same period. Both forecasts were made during this September interview.

Sources:
CryptoPotato: Charles Hoskinson on the data center bust and crypto absorbing AI
RZLT: Agentic Payments in 2026, the x402 explainer