At Pragma Taipei this April, Vitalik Buterin sat down to discuss one of Ethereum's most significant technical pivot points. The question on everyone's mind: why did the network move away from eWASM to RISC-V?
The story starts with ambition. eWASM was supposed to be the solution—a fresh replacement for the EVM's known limitations. Clean code, better performance, a real upgrade path. But execution is where theory meets reality.
Timing became the killer. While Ethereum pushed toward The Merge, eWASM development hit roadblocks. The delays stacked up. RISC-V emerged as a pragmatic alternative—lighter, faster to implement, with broader ecosystem support already in place.
Vitalik laid out the trade-offs plainly. RISC-V brought faster iteration cycles and lower technical debt. eWASM, though theoretically elegant, demanded more development resources than the timeline allowed. Sometimes the best tech isn't the one that wins—it's the one that ships.
For developers and protocol researchers watching the evolution of Ethereum's execution layer, this shift signals a maturation in thinking: flexibility beats perfection when you're building live infrastructure. The network moves forward, learning as it scales.
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ser_aped.eth
· 2025-12-30 23:11
NGL, RISC-V winning is purely a matter of time. No matter how elegant ewasm is, it has to go live... This is the reality of Web3.
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RunWhenCut
· 2025-12-30 05:29
Basically, reality has defeated ideals. No matter how elegant eWASM is, it's useless now that the tickets are issued and the design plans are still being modified... RISC-V is the方案 that can get on board, and this is the pragmatic approach of engineers.
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Fren_Not_Food
· 2025-12-29 10:13
Basically, it's about practicality over idealism. No matter how elegant eWASM is, it has to be shippable to count.
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FUDwatcher
· 2025-12-28 05:52
Honestly, this is a classic example of pragmatism defeating idealism. No matter how elegant eWASM is, it has to be delivered on time.
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ChainSpy
· 2025-12-28 05:52
RISC-V wins, so what if it wins? Anyway, eWASM, no matter how elegant, is useless. Being usable is the key, that's the reality.
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BrokenYield
· 2025-12-28 05:51
nah, this is just cope dressed up as pragmatism. risc-v won because evasm became a black swan event waiting to happen—classic systemic risk management disguised as technical wisdom. shipping broken is still shipping broken, just slower.
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degenwhisperer
· 2025-12-28 05:36
NGL RISC-V pragmatism won, eWASM was too idealistic... reality is this cruel
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BlockchainArchaeologist
· 2025-12-28 05:31
Basically, it's just that ideals are very lofty, but reality is quite harsh. The eWASM setup sounds awesome, but it gets stuck in the timeline and can't move, while RISC-V takes advantage of the situation. If I could see Ethereum also learn to "release first, perfect later" in my lifetime, that change in mindset would truly be worth it.
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ResearchChadButBroke
· 2025-12-28 05:28
NGL, at the end of the day, the philosophy of "ship it" wins. Perfectionism always loses in the face of reality... RISC-V may not be the most elegant solution, but it works. That's what infrastructure should look like.
Ethereum's Tech Choice: Why RISC-V Won Over eWASM
At Pragma Taipei this April, Vitalik Buterin sat down to discuss one of Ethereum's most significant technical pivot points. The question on everyone's mind: why did the network move away from eWASM to RISC-V?
The story starts with ambition. eWASM was supposed to be the solution—a fresh replacement for the EVM's known limitations. Clean code, better performance, a real upgrade path. But execution is where theory meets reality.
Timing became the killer. While Ethereum pushed toward The Merge, eWASM development hit roadblocks. The delays stacked up. RISC-V emerged as a pragmatic alternative—lighter, faster to implement, with broader ecosystem support already in place.
Vitalik laid out the trade-offs plainly. RISC-V brought faster iteration cycles and lower technical debt. eWASM, though theoretically elegant, demanded more development resources than the timeline allowed. Sometimes the best tech isn't the one that wins—it's the one that ships.
For developers and protocol researchers watching the evolution of Ethereum's execution layer, this shift signals a maturation in thinking: flexibility beats perfection when you're building live infrastructure. The network moves forward, learning as it scales.