We should immediately reject anything blockstream proposes due to their conflict of interest selling sidechains, a market created by throttling L1 capacity of bitcoin.
Their sidechain (Liquid network) may be unattractive for most people and it's federated (rather than decentralized), but it doesn't mean everything they do is evil or harmful towards Bitcoin. Even though i prefer Minsc which is also easy to use/understand without soft-fork.
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Bitcoin was 1mb in 2010. Moores law shows that capacity doubles every 2 years. So for us in 2022, 64mb is equivalent to 1mb in 2009.
This is gross simplified approach towards choosing block size. There are so many things you need to consider such as,
1. Hardware and internet connection price across country is different.
2. Not everyone upgrade their hardware/internet every year.
3. Some expert predict Moore's law hit it's limit soon due to various reason such as physical limitation of silicon-based CPU.