While you are technically correct, it's an idiom. https://www.merriam-webster.com/dictionary/light-years%20ahead https://www.merriam-webster.com/dictionary/lig

While you are technically correct, it's an idiom. https://www.merriam-webster.com/dictionary/light-years%20ahead https://www.merriam-webster.com/dictionary/light-years%20ahe...