There is a special kind of Clash of Clans player who logs in, sees full storages, admires their giant pile of gold and elixir, and feels like a medieval billionaire. Their base looks successful. Their resources look impressive. Their ego is thriving. The only problem is that two builders are asleep, nothing important is upgrading, and their progress has quietly come to a complete stop.

This is one of the sneakiest mistakes in the game. A lot of players judge progress by how rich they look, not by how efficiently they are growing. But in Clash of Clans, full storages are not really a flex. They are often a sign that your resources are sitting around waiting to be stolen by the next person with balloons and bad intentions.

Builders are the true engines of progress. If they are idle, your village is wasting time, and time is one resource you cannot raid back. Gold and elixir can be farmed. Dark elixir can be painfully collected. Gems can be hoarded like treasure. But lost upgrade time is just gone. Every hour a builder stands around doing nothing is an hour your village could have been getting stronger.