What is $FUEL?

Fuel v1 began as a layer-2 (L2) scalability technology for a monolithic Ethereum. It was the first optimistic rollup on mainnet Ethereum, deployed at the end of 2020.
Today, Fuel is the fastest modular execution layer. Fuel delivers the highest security and flexible throughput, focusing on a superior developer experience.
The FuelVM learns from the Ethereum ecosystem. It implements improvements suggested to the Ethereum VM (EVM) for many years that couldn’t be implemented due to the need to maintain backward compatibility, including parallel transaction execution and multiple native assets.
Fuel delivers unmatched processing capacity through its ability to execute transactions in parallel by using strict state access lists in the form of a UTXO model. With the FuelVM, Fuel full nodes identify the accounts a transaction touches, mapping out dependencies before execution. This enables Fuel to use far more threads and cores of your CPU that are typically idle in single-threaded blockchains. As a result, Fuel can deliver far more compute, state accesses, and transactional throughput than its single-threaded counterparts.