People can picture one ton in their heads, no one can picture one million individual grams.
You can imagine a ton bag of sand, you can’t imagine one million individual grains of sand that weigh one gram each.
The term “megagram” does make perfect sense, but it doesn’t fit well with the way the people experience the universe around them.
It’s the exact same reason that weight is the only SI unit where the kilogram is the standard rather than the gram. You can imagine holding a kilo in your hands (about 2.2lb if you’re American) and you could easily tell the difference between 1 and two kilos, or 1 and 0.5 of a kilo, but if you hold a gram it feels like nothing, and you probably wouldn’t be able to sense a difference between 1 and two grams etc.
Edit: didn’t think explaining that people like to describe the universe as they experience it rather than being pedants about measuring weights to the precise gram every time would be an unpopular opinion lol
Try it, count grains of sand in your head whilst you picture them. Unless you’re a savant, it probably starts getting a little blurry around the teens, maybe a bit higher. You can use tricks like imagining a grid of ten by ten to picture a hundred etc, but it’ll still be rather blurry. Picturing a million of something is literally impossible, human minds aren’t designed for that.
If you wanted some sand to line your new brick driveway, would you ask the builders merchant for a x tonnes of sand or a x million grains of sand? It’s the same difference.
There is a good reason.
People can picture one ton in their heads, no one can picture one million individual grams.
You can imagine a ton bag of sand, you can’t imagine one million individual grains of sand that weigh one gram each.
The term “megagram” does make perfect sense, but it doesn’t fit well with the way the people experience the universe around them.
It’s the exact same reason that weight is the only SI unit where the kilogram is the standard rather than the gram. You can imagine holding a kilo in your hands (about 2.2lb if you’re American) and you could easily tell the difference between 1 and two kilos, or 1 and 0.5 of a kilo, but if you hold a gram it feels like nothing, and you probably wouldn’t be able to sense a difference between 1 and two grams etc.
Edit: didn’t think explaining that people like to describe the universe as they experience it rather than being pedants about measuring weights to the precise gram every time would be an unpopular opinion lol
These two words mean the same thing, why would you be able ti picture one thing but not the other?
Try it, count grains of sand in your head whilst you picture them. Unless you’re a savant, it probably starts getting a little blurry around the teens, maybe a bit higher. You can use tricks like imagining a grid of ten by ten to picture a hundred etc, but it’ll still be rather blurry. Picturing a million of something is literally impossible, human minds aren’t designed for that.
If you wanted some sand to line your new brick driveway, would you ask the builders merchant for a x tonnes of sand or a x million grains of sand? It’s the same difference.
When I imagine 1km I don’t imagine 1000 individual meters in my head, I imagine 1km
The point is that you can easily estimate a meter.
Look to the horizon and estimate a kilometre and I’ll bet that your error is significant by comparison to your estimate of a meter.
There is a big difference between imagining/understanding a concept and judging it accurately in the real world.