solana is an incredibly diverse ecosystem, full of different actors with different motivations and strategies solana also has the singular goal of becoming the world's state machine, where users can trade and update prices for anything, from anywhere. this requires its diverse ecosystem to somehow adhere to best practices and standards, particularly around including txns predictably and as fast as possible. IBRL shines a light on block packing, and stakers can finally take a look at certain validators and their block packing patterns. for instance, take a look at slots from helius, figment, and galaxy -- each has an IBRL score of 93.3, 52.7, and 45.9, respectively. for these slots, you can observe drastically different block packing strategies. ideally, block packing is uniform and deterministic, bc this provides a foundation to create more value and welfare for users. these properties are a requirement to deliver solana's singular goal of a globally distributed NASDAQ.