Post #4299203

@zwarich@hachyderm.io @foonathan@fosstodon.org @slava@mathstodon.xyz a related idea might be to have a systematic relationship between "builder" and "value" types. dave a was really excited about killing the String/StringBuilder distinction with value semantics, but in practice there are efficiencies in batching up updates and reconciling edits into a data structure all at once when the update is finished