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Why doesnt Ethereum support concurrency?

https://en.m.wikipedia.org/wiki/Concurrency_(computer_science)

Nathan Aw
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  • because it would be an overkill. create concurrency at DApp level, and only use blockchain technology for storing money. – Nulik Jul 23 '18 at 14:30

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There is an EIP draft written for it here, but it wasn't implemented because the actual bottleneck for tx execution is state i/o, which would only be worsened by tx parallelizing.

natewelch_
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