> Implementors have discussed and concluded that while alternative encodings might offer improved size, the intention to support layer 1 (allowing outer wrappin

> Implementors have discussed and concluded that while alternative encodings might offer improved size, the intention to support layer 1 (allowing outer wrapping format specific compression), and the degree to which LEBs are well known, outweighs this advantage for MVP. Interesting. Any idea what's meant by "layer 1" here?