just thoughts..
if you don’t even have faith in what you have done, who are you to convince?
if a little more sensitivity is exercised, you would have considered the amount of work the poor chap spent in getting the mechanism to make it even work and not blatantly dismiss it as being too simple
if two wheels is suffice in getting the bicycle to move, do you need six wheels just to appear more sophisticated?
oh well

멜빈은 바보가 아니야. 힘내! ^^