Yes, the engineers are bound by the laws of physics. They could design a small pump that is easy to pump, this is not the issue. The issue is that we would be then complaining that it takes an hour to pump up a 700X23 tire to a pressure that you could ride home with. I have tried mini pumps, CO2 and the topPeak road morph. I still use the road morph. The problem I have found with CO2 is (all the ones I have tried) are all or nothing, some claim to e able to stop the air flow but what I have seen is they freeze up and keep going. This can be a problem if you need to pump the tube up enough to find the leak, you let off the trigger or what ever they use and it just keeps going. I have had many flats and tried several solutions. the one that has worked best for me has been the road morph and use a new or previously repaired tube. Save the patching for at home when you have plenty of time to do it over again if it does not hold the first time.