I used to be an IC designer - ICs are an exception. There are some exceptions of course - medical drugs are another that come to mind. Most business ideas are

I used to be an IC designer - ICs are an exception. There are some exceptions of course - medical drugs are another that come to mind. Most business ideas are pretty simple though, even outside the internet world. Eg. Sam Walton -> just wanted to build a better retail store, turned into Walmart. Howard Schulz -> better coffee shop -> Starbucks. Warren Buffett -> stockpicking -> BRK. And so on. Execution on these was the hard part.