The Ethereum blockchain has had a “scalability” problem for years. Crushed under the weight of its own success, the network now lumbers along at about 15 transactions per second while a single transaction can cost over $20.
This bottleneck prevents the network from growing and gives developers a reason to look elsewhere. Competitors like Polkadot and Avalanche already offer thousands of transactions per second and negligible fees. And if a faster rival should suck up all the talent, Ethereum—and ETH—will fade into obscurity.
One solution is the “rollup”, so-called because the technology rolls up transactions and fits them into a single block. Doing so frees the network from congestion, making transactions faster and cheaper. And, with any luck, they’ll allow the Ethereum network to keep on growing.
That’s what Ethereum creator Vitalik Buterin gushed about to listeners of the Tim Ferriss Show when he referred to a “powerful scaling solution” last week.
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Źródło: https://decrypt.co/61372/how-rollups-could-make-ethereum-cheaper-to-use
