Yes, that's a very good point ! On first order of approximation you can take how much a miner gains on average per transaction (mining+fees), which is probably

Yes, that's a very good point ! On first order of approximation you can take how much a miner gains on average per transaction (mining+fees), which is probably much easier to calculate than the real cost of the other side (I guess one could check how much Western Union takes ?) Sometimes people compare it with Visa/Mastercard costs, but it's unfair when you're talking about unallied countries, as those benefit from the discount coming from operating at scale in allied countries, and the bitcoin network cannot be consistently shut down without shutting down the Internet itself !