I would like to point out that this is about 5 feet tall and 8 feet wide:
by the way - that's an image of blood flow in an artery.
*updated, from comments:
I probably should have said 'affordable' in scare-quotes. This thing costs around $100,000 the way it was implemented. We could probably lower the price by using less memory per node, and less high-quality nodes as well, which might get it to go down to around an 'affordable' $60,000!