On: Man throws 4,800 bottled notes into the ocean, gets 3,100 replies

[andrew1]

I find the environmental criticisms here bizarre; do the communication mechanisms the rest of us use suddenly have no environmental costs?

[VMG → andrew1]

I find your response even more bizarre - just try to imagine replacing email with this method for just half a minute.

The real reason this isn't a concern is because of the absolute cost of his experiment, not because of the relative expense of his communication method in comparison to others.