"heretical ideas" refers to beliefs or thoughts that go against established or traditional beliefs or teachings. They are considered unconventional or rebellious because they challenge commonly accepted ideas or norms. Full definition
At the same time, the risks to the financial system are mounting as the myopic focus on monetary policy — including once heretical ideas like negative rates — pushes yield - starved investors into riskier assets like stocks and real estate, creating fears of destabilizing bubbles that could unleash brand new crises. (moneysense.ca)
The marketplace can only handle so many heretical ideas at one time. (discovermagazine.com)
Investigating heretical ideas reflects the true nature of science: a curiosity and passion to explore and discover. (newscientist.com)