'difficult' is relatively meaningless, or I guess only meaningful relatively. Basically once you know something (e.g., a particular leetcode problem, or how to

'difficult' is relatively meaningless, or I guess only meaningful relatively. Basically once you know something (e.g., a particular leetcode problem, or how to paginate an API) it's easy all of a sudden, but it was hard before you knew it. The more interesting endeavor is to make the complicated simple.