Take Naruto, he uses rasengan, all that chakra is burned up and perhaps dissipates in the air or just disappears. Latter on he charges up more chakra in order to do more jutsu. So basically if humans can generate chakra through their own energy consumption wouldn't that mean there could be a potentially infinite amount of chakra obtained from one chakra fruit as long as the inheritors of chakra continually generate chakra with their bodies? Or does chakra dissipate into the air and then get reabsorbed into humans as they "charge" or rest?