Ah, excuse me, I misquoted the speaker of his presentation. The actual measurement was "zettajoules." Not terajoules, though you could still use them. It'd just be a larger number to describe the number of zettajoules. Of which, we dump 14,000,000,000 tera joules into the ocean each year. The entirety of mankind uses a fraction of that. Half of a billion. So that's roughly .04% efficiency for using up energy. And we're proud of that? Any good capitalist would be rolling in their grave about a product being squandered so recklessly.