What was a primary reason investors were so attracted to Theranos initially

One primary reason investors were initially attracted to Theranos was the revolutionary promise of its technology. Theranos claimed to have developed a breakthrough blood-testing technology that could perform a wide range of tests using only a few drops of blood, as opposed to the traditional venipuncture method that required larger blood samples. Elizabeth Holmes, the founder and CEO of Theranos, marketed the technology as a game-changer in the medical industry, with the potential to revolutionize healthcare by making blood tests more accessible, affordable, and convenient.

Investors were captivated by the idea of a company that could disrupt the $76 billion diagnostic laboratory industry and potentially become a global leader in healthcare technology. This revolutionary potential, combined with Holmes' charisma, vision, and the company's early validation from prominent investors and partnerships with major healthcare organizations, created a sense of excitement and urgency among investors to be part of Theranos' success