Disposable income is the money people have after taxes.

You can have 10000 dollars of monthly disposable income and be well above the global average. You can have 9999 dollar rent with only a single dollar left. A single basic peanut butter and jelly sandwich could cost 100 dollars. Your disposable income is still massively above the average. Your discretionary income would be very low, though.

> English and Spanish

Part of the causality is the other way around: The largest language communities attract the most monetization. Europe being compartmented into 24+ languages is one reason that it’s harder to monetize.

See, that occurred to me, but the Units thing makes me think it is not as big as you would think.

Most of the English speaking world runs partly or fully on Metric.

...and there are many Australian YouTubers who talk about prices in US Dollars.

Once you notice this, it is hard to ignore the per capita disposable income argument. The disparity is wild when you run the numbers.

I don’t know. For example, I see a lot of US citizens complaining that the price of the Apple Vision Pro is ridiculous and unaffordable for what it is, or similar about the Mac memory and storage upgrade pricing. Or even for streaming subscription prices. If you were right, those prices shouldn’t be a big deal.

As for the currency unit, everyone knows what a USD is worth, much less than AUD or CAD or GBP or whatever. The reasons to use USD are the same as for language choice.

You jumped the shark on the Apple pricing argument. People will always complain about prices no matter how rich they are. That is a character trait for many.

I am amenable to your second talking point. I still think my perspective is a useful model to consider. Not "right" in any absolute sense.