Nuclear can prolong us for a long time, uranium would basically be a stop gap to full on conversion to thorium reactors, as it's 3 times more abundant than uran

Nuclear can prolong us for a long time, uranium would basically be a stop gap to full on conversion to thorium reactors, as it's 3 times more abundant than uranium, but 550 times more abundant than U-235. Basically nuclear would only be a stopgap to Fusion. Once fusion becomes available, you can begin replacing fission with fusion. Existing nuclear power plants have so much land reserved around them as a buffer zone that entire fusion plants can be built on them without the requirement of any new land as the old nuclear plants are decommissioned. The ITER project currently puts the first commercial fusion plant in 2050, however that's based on current funding and research. As fusion increasingly becomes our only alternative I have a feeling the funding will begin going through the roof. I still wouldn't bet on anything closer than 2035 though.