Numerous successful entrepreneurs have utilized ETA principles, whether consciously or unconsciously. For instance, Airbnb started as a simple experiment to rent out air mattresses in a living room. The founders used their available resources and tested their idea with a small target market. Through iterative learning and leveraging their networks, they were able to scale the business into a global platform. Similarly, Dropbox began by creating a simple demo video to gauge interest before building the full product, allowing them to validate their idea with minimal investment.