I have been building a prototype page over the past few months that uses a lot of SVG and has a lot of elements in general. There is also a ton of data being processed both
There are no limits that are written in stone.
What can be done on my computer versus the machine I look up recipes on versus my 4 year olds netbook will differ. Memory, speed, etc depends on the browser, cpu, ram, and what else is running on the machine. I bet you run your code on some other platforms and it will freeze and you would have to do the 3 finger salute to kill the process.