Christian Catalini, the co-creator of Facebook’s once-ambitious Libra project, has voiced concerns regarding recent developments in the cryptocurrency landscape, specifically targeting Stripe’s Tempo and Circle’s Arc. In a reflective commentary on X, Catalini highlighted a potential commercial success for these new projects, but warned that such achievements might come at the expense of the foundational principle of decentralization that underpins the cryptocurrency ideology.
Launched in 2019, Libra was an initiative by Meta intended to create a global digital currency backed by a variety of stable assets. The promise was to facilitate seamless transactions comparable to messaging. However, the project faced immediate backlash from regulators, raising alarms about financial sovereignty, systemic risk, and user privacy concerns. By 2022, amidst ongoing scrutiny, Libra—later renamed Diem in an attempt to rebrand—was ultimately shut down, with its remaining assets sold off.
Reflecting on the early decisions that led to these complications, Catalini stressed the compromises imposed by regulatory negotiations that ultimately reshaped the project. In his analysis, he pointed out a crucial retreat: the abandonment of non-custodial wallets. Regulators sought a “clear perimeter,” necessitating a responsible intermediary who could be held accountable for any issues. Catalini argued that the removal of self-custody was not just a choice but a mandated necessity for regulatory bodies accustomed to traditional finance structures.
Catalini also noted an ironic twist: while Libra had to relinquish its decentralized ambitions in light of regulatory pressure, current developments are witnessing the emergence of open networks that are crafting compliance tools inherently tied to blockchain technology, potentially addressing the concerns raised back then more effectively than established systems.
Turning his attention to Stripe’s Tempo and Circle’s Arc, Catalini positioned them within this historical context. Circle’s Arc, launched on August 12, is marketed as a Layer-1 network specifically for stablecoin financial transactions. Unlike conventional public blockchains that operate on fluctuating gas tokens, Arc utilizes USDC for transaction fees, promising predictable costs and features like sub-second finality and enhanced privacy.
On the other hand, Tempo, unveiled by Stripe and Paradigm on September 4, is presented as a high-capacity payments-focused blockchain capable of managing over 100,000 transactions per second. The platform supports EVM compatibility and allows users to execute transactions using various stablecoins.
Both Arc and Tempo have been positioned as pioneering efforts to mainstream stablecoin payments, yet Catalini expressed skepticism. He pointed to the risk that these corporate-led blockchain initiatives could merely replicate the existing financial structure with fintech companies rising to power in place of traditional banks and credit networks. In his view, the currency of change would remain stagnant; the system might see different players atop the hierarchy, but the underlying dynamics would remain unchanged.
He further warned that geopolitical divisions could lead to a fragmented financial landscape, with differing infrastructures emerging from Western and Eastern blocs, further undermining the vision of a borderless financial ecosystem that early crypto advocates championed.
Ultimately, Catalini framed Stripe’s Tempo as a “referendum on the ghost of Libra.” He suggested that if Tempo succeeds, it may indicate that Libra’s downfall was due to timing rather than inherent flaws in its design. This could signify that the overarching dream of open and permissionless money has been supplanted by more centralized and pragmatic financial solutions.

