When you die, do you want to be buried, cremated, frozen and vibrated into dust, or liquified? If you want to do the latter you need... The Resomator!
It sounds like a Roger Corman movie, but this machine is real and better than cremation.
The Resomator is a steel chamber that gets filled with a) a human body and b) a solution of water and potassium hydroxide. The chamber increases the pressure to ten atmospheres, pushing the temperature up to 356F (180C) for "between two-and-half and three hours." I guess that depends on the size of the body or how you like the meat.
The process—which is called alkaline hydrolysis—dissolves all the body tissue except the bones, separating the liquid from the solid remains. The solid remains then get and put into something called... The Cremulator!—this crushes the bones into ash.