User blog comment:DragonbornMAGE/Short view on Dwemer disappearance/@comment-1840877-20130103135919

Didn't the Aedra themselves will the Dwemer out of existence? AFAIK, the Dwemer tried to tap into the power of Lorkhan's Heart to achieve divinity, then the Aedra were like, "Nope", and made the whole race disappear.