Computers were initially feared to replace jobs in knowledge work industries, such as engineering designs and architectural drawings. However, these tools actually enhanced productivity, leading to the emergence of new sub-industries and overall industry growth. The automation enabled by software in knowledge work allows humans to achieve 10 to 100 times more leverage. Instead of replacing jobs, computers are enabling individuals to shift to higher-order work, driving economic growth and increased productivity. As seen historically, increased productivity leads to cost reductions, volume expansion, and overall economic growth. The transition from manual work to knowledge work aided by computers is akin to the industrial revolution's replacement of manual labor with machines. The key takeaway is that these tools provide leverage for knowledge work, leading to industry growth and higher productivity, rather than solely replacing human involvement.