itsmek

Charging at home is often more expensive than gas in much of California and Hawaii but yes generally cheaper to run if you ignore vehicle cost and lifespan.

Here's where you can go direct from Barcelona with a carry on for $100 max: https://www.google.com/travel/explore?tfs=CBwQAxoQKABqDAgDEg...

And the same for San Francisco: https://www.google.com/travel/explore?tfs=CBwQAxoQKABqDAgDEg...

Based on these I think airfare in the US looks better, especially considering the longer distances. Barcelona-London is the same price as San Francisco-Denver but 75% as far for example.

This sounds plausible to me. Can you please link to some of these studies you mention?

I feel like you're missing their point. The person you're replying to made a convincing argument that differentiates Person A and Person B by considering the fraction of products sold and how that affects the probability of the null hypothesis (using that price by chance). That's not a double standard.