Python has keyword arguments to functions. In that context, a single star packs or unpacks a list of positional arguments and a double star packs or unpacks a dictionary of keyword arguments.

Technically, `...` acts as either the spread or the rest operator, depending on the location. I recall there was an initial impression of intimidation among people who were familiar with ES5 syntax when trying to adopt to these new features because of this.

On the other hand, I'm fairly certain that having to visually disambiguate between `` and `*` and remembering which did what would have gotten a similar reaction.