[jayd16]

I wouldn't even say performance is all that different.

Something that is unique is the idea that a website is a single document where as a virtual website might take the form of an interactive object and/or an interactive space.

I would say it's an open question how we want these web based virtual objects to interact with each other. Would we want to physically pull a video object off the Google Drive shelf and drop it into the YouTube workstation? How would such an interaction be possible? Even if, as today, they just never speak directly, could those objects live in the same space or would each website fully immerse the user?