Ben-Sasson also welcomed Buterin’s decision to make privacy and quantum-resistant cryptography top priorities.
“Quantum safety—excellent,” he wrote on X. “Glad to see this as a high priority.”
But he argued Ethereum shouldn’t wait three to four years to get there.
“‘3-4 years’ as the timeline is way too long,” Ben-Sasson said. “Especially for quantum readiness.”
Former Ethereum Foundation researcher Dankrad Feist struck a similar tone. Calling the roadmap’s vision “really cool,” Feist said on X that features like near-instant transaction finality and dramatically higher throughput could transform the network.
His biggest concern, however, was speed. “But 3-4 years is very slow,” Feist wrote. “I think we should be ambitious and get it done in ~1 year.”
Feist even suggested recent advances in AI tools, including large language models, could help accelerate development.
Not every discussion centered on timing. Some researchers dug into the roadmap’s technical details.
Ben-Sasson questioned one of Buterin’s proposals to introduce new types of blockchain “state,” essentially the data Ethereum stores about accounts, balances and smart contracts.
“New kinds of state: what does that mean? Who is affected by it?” he asked, calling for more explanation.
Meanwhile, Ethereum Foundation researcher Barnabé Monnot focused on how the roadmap had changed from an earlier version released in February.