What happens when token supply runs out?

As a crypto enthusiast and investor, I'm always intrigued by the dynamics of token economies. One of the fundamental questions that often arises in my mind is: What happens when a token's supply runs out? Does the scarcity drive up its value exponentially? Or does the market find alternative tokens to fill the void? Does the community behind the token find innovative ways to sustain its ecosystem? Or does the project itself lose momentum? Understanding the implications of a diminishing token supply is crucial in assessing the long-term viability of a project. After all, a token's value isn't just determined by its current utility; it's also shaped by the community's trust and confidence in its future prospects.