oh man I wish! The thing about the elements necessary for life, is that by definition they're present in sufficient quantities in all life; and it's not like humans need any special elements. What's true is we spend 80+ years picking up trace amounts of stuff that's inimical to life, but our bodies can't get rid of it. I'm thinking about heavy metals and halocarbons, because they are toxic, they persist, and they are absorbed by the soil ecosystem. Deep well injection seems much more ecological a fate for a human body. Also, in terms of last wishes, it seems bloody arrogant to think that the contaminated shell I used to pillage this planet would be in any way useful after the fact. Chemically speaking, we have declared ourselves independent from nature. And biologically speaking, nature doesn't need any of our filth.
end of the day a dead human body is the ultimate useless tchotchke. "What were they good for?"
"Dunno but they sure cranked out a lot of em"