For one, they serve different purposes. Haxl is specifically for concurrent data retrieval while BEAM is a general purpose platform for fault-tolerant computati

For one, they serve different purposes. Haxl is specifically for concurrent data retrieval while BEAM is a general purpose platform for fault-tolerant computation. For another, they operate via different interfaces. BEAM languages communicate concurrently only via a message passing interface. Haxl lets the author write declarative code specifying what to retrieve, then the library executes it concurrently and in parallel under-the-hood. Both are properly described as "unreasonably easy" - just for different sorts of things, on different platforms, with different interfaces.