True for ETH; not necessarily for faster chains.https://twitter.com/john_j_brown/status/1295231224219410432 …
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Oh yeah you def can't get 1 tx to have a latency of < 1/1m s, but you can do multiple in parallel without sharding using e.g. memory allocation (what Solana does)
CPU/Mem is not the problem here, as mentioned on a single machine testnet it would probably all work fine.
But imagine shooting every 400ms, 10M transactions confirmations around to hundreds of nodes and synchronizing them all 
That's why L2 solutions are popping out.
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10M is 20gbps, which is theoretically doable since pci4 bandwidth is 1tbps. My guess is in that less then 10 years from now 20gbps will be as common for consumers as 1gbps.
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At that bandwidth, cpu and memory are a challenge. The runtime needs to be as stateless as possible. This is why we are using ebpf as the bytecode, which has been commercially proven at 40gbps/60m packets per second.pic.twitter.com/v7Kd7qxxUZ
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Paolo, see here for how Solana handles block propagation cc
@aeyakovenkohttps://medium.com/solana-labs/turbine-solanas-block-propagation-protocol-solves-the-scalability-trilemma-2ddba46a51db … -
tuRbINeS
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