Reading URLs is actually really hard - even for experts. This video covers the problems well: https://www.youtube.com/watch?v=0-wB1VY3Nrc

This is bad for web security, since the registerable domain is the part you have to trust, but it's surprisingly difficult to figure out that part.

However I feel a bit uneasy about this since URLs are important and tell you where you are on a website. I prefer Firefox's approach which emphasises the registerable domain in the URL bar and fades out the rest of it, making it easier to spot the important bit. However it's still quite subtle - it could do with being a clearer distinction.