No tools have ever gone extinct in human history http://www.npr.org/sections/krulwich/2011/02/04/133188723/tools-never-die-waddaya-mean-never http://www.npr.or

No tools have ever gone extinct in human history http://www.npr.org/sections/krulwich/2011/02/04/133188723/tools-never-die-waddaya-mean-never http://www.npr.org/sections/krulwich/2011/02/04/133188723/to...