I've always argued against the metric system being "better" than another system of weights and measures.
Well you're wrong. Its obviously better to base things off of powers of 10 than some random factor. You can do the math in your head, you can convert left and right. You don't have that "arbitrary retarded rollercoaster" in the second picture in my post.
A mile? Oh, that's 5280 feet. Wait, how many yards is that? Oh fuck. Let me get my calculator.
There's no way that equally as good as: 1 km = 1000 m = 1000000 mm
The only problem I have is visualizing distance metrically. And its because of growing up using the US system. I know how far a mile is in my head. I can't picture X kilometers without converting it into some number of miles.
I just realized something right before I hit submit...
We've been playing Minecraft a bit lately. In that game, each block is a square meter. I've gotten the sense of about how far 1000 blocks is. I can picture the real world as if I was standing in Minecraft and then picture how far 1000 blocks away would be and, voila, there's my kilometer!
Still though, its hard for me to imaged 6.5 kilometers but I have no problem seeing how far away 6.5 mile would be.