Computer Science isn't the field you look to for "novel abstractions that no one has thought of before". The vast majority of CS concepts were settled over 50 years ago. I've never encountered someone who has generated "an abstraction that no one has ever thought of before", in my 40 years as a professional developer. Its always clever applications of abstractions or algorithms to a problem. In the majority of cases it is because faster hardware has opened up possibilities to use an approach that wouldn't have been practical before.