You won’t know if you’ll get a 404 until you make a network request. How many of those can you make per second? Hundreds? Thousands? Let’s be very generous and

You won’t know if you’ll get a 404 until you make a network request. How many of those can you make per second? Hundreds? Thousands? Let’s be very generous and say millions. That means you just need millions of years to go through the entire range.