For anyone familiar with the landscape:

Are webworkers likely to improve dramatically as time goes on? For example, the cost of using web workers appears[1] to be far greater than just spinning up another thread in, say, Go[2]. I assume this is mainly due to how the browser is sandboxing JS. So, is there room for improvement here? Or have most things js related been so drastically optimized that we are without much hope here?

[1]: Purely speculative on my part. [2]: Yes i know Go has green threads, it's purely an example. I was going to say Rust, but that seems like an unfair comparison.