I guess I beat the hurdles when I got back working at the farmer's market!
What If look at a batch of Me-262 jets in the North Africa Campaign of World War 2. The German jet only began flight testing by the time North Africa was finished. If it had entered full production several years earlier, it would've been far more than a match for Spitfires & Tomahawks, the best Allied fighters at the time, and would've changed out history's outcome of the campaign & the war itself.