So you already know how people are going to use BigInt, so you can tell them what optimizations are useful? Send them a message, JS runtime implementers are eag

So you already know how people are going to use BigInt, so you can tell them what optimizations are useful? Send them a message, JS runtime implementers are eager to hear from you! Keep in mind each optimization comes at a cost, so you don't want to willy-nilly implement any optimization that comes to mind (time and (code) space and (runtime memory) space complexity).