According to year 2019 research by the Boston Consulting Group and Hello Tomorrow, a French nonprofit that supports deep technology, the most prominent deep tech fields included advanced materials, artificial intelligence, biotechnology, blockchain, robotics, photonics, electronics, quantum computing. Global private investment in those fields increased more than 20% a year from 2015 and reached almost $18 billion in 2018.[1] Possible fields for deep tech application include agriculture, life sciences, chemistry, aerospace and green energy.[6]