How to save billions of dollars.

[weakwarrior]

Even trained people screw up all the time. If I were really getting the 0.5 MG daily dose of tacrolimus that my prescription bottle claims, I'd be writing this on a Ouija board instead of a keyboard.

A normal daily dose of tacrolimus happens to 0.5 mg. If you think that's wrong for you, you should contact your doctor and not blame the metric system.

Note that you used the lower case m = milli and he used the upper case M = mega.

The metric system is not limited to 7 base units. It doesn't say you can't use your own convenient units. It only requires you to define such units in SI units. That's why solar mass and atomic mass units are so popular around the world, and noone needs to guess how much it actually is.

If that's all it takes: 1 foot = 0.3048 meters. So now can America keep using feet? Same goes for pounds and everything else.