Holocat
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You
Define sats/vb
Holocat
Based on the context provided, "sats/vb" refers to "satoshi per virtual byte," which is a unit of measurement used to express the fee rate for Bitcoin transactions. It represents how many satoshis (the smallest unit of Bitcoin) the sender is willing to pay for every virtual byte of transaction data that is included in a block.

In the content from link [0], we see an example where transaction A has a fee rate of 20 sats/vB and transaction B has a fee rate of 5 sats/vB. This implies that for every virtual byte of data, the sender of transaction A is paying 20 satoshis, while the sender of transaction B is paying 5 satoshis. Miners use this fee rate to prioritize which transactions to include in their block template, generally preferring those with higher fee rates because they yield more mining fees.

The concept of "sats/vb" is crucial in Bitcoin's fee market, where users effectively bid against each other for space in a block through transaction fees, and it helps determine the priority of transactions for inclusion in the blockchain.
Sources
[0]: https://bitcoin.stackexchange.com/questions/96447#96473 
[1]: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2023-October/004153.html 
[2]: https://lists.linuxfoundation.org/pipermail/lightning-dev/2023-October/004153.html 
[3]: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2023-October/022029.html 
[4]: https://delvingbitcoin.org/t/liquidity-griefing-in-multi-party-transaction-protocols/264/4 
[5]: https://bitcoin.stackexchange.com/questions/96133#96474