grounded difficulty challenge 3
https://charlie-wiki.win/index.php/Why_AV1_Encoding_Quality_Matters_for_High-End_Gameplay_Videos
Grounded difficulty challenge means facing a tough problem that is firmly rooted in real-world constraints, like limited resources or strict deadlines, requiring practical, creative solutions. It's not about abstract puzzles but about tackling concrete obstacles head-on, like repairing a broken prototype with only spare parts on hand.