Collecting 11 million cobblestone in 100 days is no small feat in Minecraft, and it required a lot of planning and optimization. From my experience, the key was to use efficient mining strategies like branch mining and quarry mining, which helped maximize cobblestone yield while minimizing time spent. I also crafted tools with increased durability and mining speed to streamline the process. One fun part of this journey was experimenting with different crafting setups. Using furnaces to smelt cobblestone into stone blocks gave me more versatility in building projects. Additionally, enchanting tools with Efficiency and Unbreaking sped up mining dramatically. It's also important to stay organized when managing such large quantities of cobblestone. Sorting storage chests by block type and creating automated collection systems with hoppers helped keep my inventory manageable. If you're aiming to gather cobblestone quickly, consider building a mob grinder nearby to collect resources and experience points that can enhance tool efficiency. Combining these strategies will significantly impact your Minecraft world development and overall gameplay enjoyment. Sharing this experience helps me appreciate the depth of Minecraft’s crafting and mining mechanics, which keep the game engaging even after countless hours.