Good comment. > It's hard to build a "general purpose" abstraction layer that will work for specific purposes I would phrase this a little differently. It’s i

Good comment. > It's hard to build a "general purpose" abstraction layer that will work for specific purposes I would phrase this a little differently. It’s impossible to make good tradeoffs without an understanding of the specific use case. “Lossless abstractions” are possible, just rare as they usually come from understanding essential mathematical properties.