>> I saw a post yesterday showing Brave browser's new tab using 70mb of RAM in the background. I'm very sure there's code there that can be optimized, but who gives a shit.

I do. This sort of attitude is how we have machines more powerful than ever yet everything still seems to run like shit.

▲

const_cast 5 days ago | parent [-]

This is barely related but I bet that the extra 70 mb of ram isn't even waste - it's probably an optimization. Its possible they're spinning up a JS VM preemptively so when you do navigate you have a hot interpreter for the inevitable script. Maybe they allocate memory for the DOM too.

	▲	KoolKat23 5 days ago \| parent [-]
		Probably the case, I felt bad using this as an example as I don't know the specifics, but thought it is an easy way to convey my point (sorry if so Brave developers).