Nanorobots will feed humans through blood and extract waste

Ray Kurzweil : futurist
Nanobots will be capable of entering the bloodstream to "feed" cells and extract waste will exist (though not necessarily be in wide use) by the end of 2020's. They will make the normal mode of human food consumption obsolete.

Kurzweil, Ray. 2005. The singularity is near: when humans transcend biology. New York: Viking.

Fatal error: Uncaught exception 'ErrorException' with message 'file_put_contents(): Only 0 of 170 bytes written, possibly out of free disk space' in /var/www/foresight/data/www/ Stack trace: #0 [internal function]: Kohana_Core::error_handler(2, 'file_put_conten...', '/var/www/foresi...', 91, Array) #1 /var/www/foresight/data/www/ file_put_contents('/var/www/foresi...', '\n2019-04-24 14:...', 8) #2 /var/www/foresight/data/www/ Kohana_Log_File->write(Array) #3 /var/www/foresight/data/www/ Kohana_Log->write() #4 [internal function]: Kohana_Session->write() #5 {main} thrown in /var/www/foresight/data/www/ on line 91