Ben-Sasson also welcomed Buterin’s decision to make privacy and quantum-resistant cryptography top priorities.
“Quantum security – excellent,” he wrote on X. “Happy to see this as a high priority.”
But he argued that Ethereum should not 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 at X that features like near-instant transaction finality and dramatically higher throughput could transform the network.
However, his biggest concern was speed. “But 3-4 years is very slow,” Feist wrote. “I think we need to 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 was about 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 forms of state: what does it mean? Who is affected?” he asked, calling for more explanation.
Meanwhile, Ethereum Foundation researcher Barnabé Monnot focused on how the roadmap had changed from a previous version released in February.
