well, the inventionrs/products I listed were mistakes...
As for mistakes being OK....well in my profession (engineer), that's a big problem...Things have to be right or lots of money or worse, lives are lost. In most cases for me though, cars would lose a race because of aero or an engine would pop
So, please in you uneducated and upset demeanor explain to me what is "bullshit".

he said oxygen theif...that's a new one I'll have to save.