Earned optimism vs. naive wish fulfillment
Solarpunk's hope must be earned by showing the work: the processes of community organizing, the difficult governance decisions, the failures and recoveries that produced the functioning society. A future that has simply arrived in a pleasant state is wish fulfillment; a future that is visibly the product of human effort and ongoing choice is genuinely hopeful. The best solarpunk fiction shows us a world in the process of building what it values — not a completed utopia but a living project, with all the difficulty and occasional failure that implies. This is what makes the hope feel possible rather than sentimental.