Most tech investors instinctively guess the birth of the internet or the semiconductor boom. The correct answer is 1846. Carl Zeiss built its reputation handcrafting brass microscopes in the mid nineteenth century. True monopolies in deep tech do not spring from venture capital term sheets. They require centuries of compounding institutional knowledge in materials science. That specific knowledge now guards the gates to the modern economy. ASML builds the machines that print the chips for Apple and Nvidia. These lithography systems cost upward of $150 million each. They are useless without the highly specialized mirrors that bounce extreme ultraviolet light inside the vacuum chamber.