Vcasih mora prit kdo brez formalne izobrazbe, da prispeva nov pogled, rešitve, si upa.
Amalgamske zalivke, pustimo koliko so ustrezne, so razvili izven stroke in je stroka nasprotovala uporabi, kasneje pa jo je taista stroka uporabljala 100let.

However, at that point the use of dental amalgam was declared to be malpractice, and the American Society of Dental Surgeons (ASDS), the only US dental association at the time, forced all of its members to sign a pledge to abstain from using the mercury