Hadn't thought about the 64 business but that works as well.
Years ago when I first began my photo journey which was for real 64 years ago; we had to learn how to use fstops/shutter speed and light meters, or fail.
I can remember it well, when the lightbulb went on about the doubling and halving of values became clear. I struggle for a long time understanding how that was possible. In those days, there weren't classes and the internet, etc. we just dove in and by trial and error figured things out.
IMHO, there are photographers who learn the craft and skill of using their equipment and then now we have folks who love taking pictures, but have no real understanding of how to be in control of their tools. I am not sure it is all their fault. Advertising certainly doesn't help.
Don't get me wrong, it is wonderful people love taking pictures, but fewer are interested in photography than they are with making "better mom pictures". The quote comes from a student, and I understand exactly what she wants to learn. However, it isn't really photography in the sense of the word so many here are discussing.
However, these folks have bought into the advertising and struggle when they find out, that it takes hard work and lots of practice to gain control of their tools; many just throw in the towel or want the makers to make it easier. Then get pissed when people with photography backgrounds and love of the beauty of craft don't love just every photo they post.
Don't mean to get so off track, but for me at least, it all comes back to learning how to use your tools with metering being critical. Without being boastful, how many of you make errors in metering? Probably rarely and that is because you have spent the time learning how to meter. I know for a fact my computer (brain) just takes charge and I make adjustments and evaluate the scene without much conscience thought. That doesn't make me special, that is the result of lots of practice and failures and paying attention to those failures so corrections could be made going forward.
Every time I get a new camera I have to run some test shots to program my brain to react to it's qualities and if I forget and use old information then I am not a happy camper.
Bottom line the meter is just a guide not an absolute, learn how to use that information for getting the proper exposures.