Polynomial and ZeroLend shut down days apart, each citing liquidity pressure as a key factor. Polynomial said it chose to close “instead of launching a token for a dying product.” ZeroLend pointed to “prolonged periods where the protocol operated at a loss.”
The back-to-back exits have revived a familiar concern: if adoption is rising, why are DeFi protocols still failing on basic sustainability?
Adoption is rising, but weak tokens are being culled
“Crypto adoption is growing quickly across both merchants and everyday users, yet crypto companies with tokens that lack utility are shutting down,” said Diego Martin, CEO of Yellow Capital.
Martin argues that growth in users and institutional visibility has obscured a more uncomfortable reality: the sector’s core market structure has not advanced fast enough to match the capital flowing in.
“The narrative in Web3 — that the entry of institutional giants automatically signals the maturity of the digital asset industry — is a common misconception,” he said. “While capital flow has increased significantly, the underlying innovation has largely stagnated, leaving the space in a state of arrested development.”
The real bottleneck is fragmented liquidity
In Martin’s view, liquidity fragmentation sits at the heart of the problem. Trading and custody are spread across exchanges, custodians, and blockchains, creating pricing instability and liquidity gaps precisely when demand rises.
“The key challenge is fragmented liquidity,” Martin said. “Crypto trading and custody is fragmented across many exchanges, custodians and blockchains. This leads to unstable pricing and short-term liquidity gaps when demand increases.”
That instability hits different participants in different ways.
“For merchants, it creates uncertainty around settlement and pricing,” he said. “For consumers, this makes crypto a less predictable and appealing option to pay with.”
Why “more usage” can create more friction
One of the more counterintuitive points in Martin’s critique is that rising adoption can worsen the experience if the underlying liquidity rails remain disconnected.
“Unified liquidity and reliable clearing are essential for institutional participation and merchant confidence,” he said. “Without this foundation, increased usage means more friction instead of efficiency.”
He frames the issue as an infrastructure problem — the kind end users shouldn’t have to think about, but absolutely depend on.
“For adoption to last, liquidity needs to be more connected,” Martin said. “Think of a well-built patio. People want to stand on it, enjoy the view, and feel secure without needing to understand the structural engineering or the depth of the concrete footings beneath them.”
What a safer fix looks like — and what to avoid
Martin’s prescription is to prioritize trust-minimized infrastructure that connects liquidity venues efficiently, rather than leaning on “bridge-style” approaches that have repeatedly proven brittle under attack.
“The most effective way is to create an efficient and trustless infrastructure that connects liquidity venues,” he said. “This is far safer than risky, bridge-style applications, which are vulnerable to attacks.”
Is DeFi threatened, or just being forced to mature?
The closure of two protocols does not, on its own, prove DeFi is in existential danger. But it does spotlight a recurring pattern: protocols can attract users, incentives, and even headlines — yet still fail when liquidity is shallow, dispersed, or expensive to maintain.
If DeFi’s next phase is real, it may look less like a new token cycle and more like market plumbing: unified liquidity, reliable clearing, and settlement systems designed to hold up under stress — so adoption can feel stable rather than volatile.
