Of course resources are a limitation. But instead of investigating a supposed limitation and seeing what can be overcome and what is truly fundamental, you have people either giving up and calling the issue intractable or not putting in the work while expecting it to be resolved. Example: liquid fuels. Inside of America there are two wolves—one correctly notes the high carbon cost of liquid hydrocarbons and the high money cost of synthesizing them and concludes there is no future for liquid fuels, while the other hears "synthetic fuels" and assumes the problem is already solved and so electrification need not be hurried. In reality, the high money cost can be overcome with sufficient buildup of renewables, as is beginning to be seen in China and will become obvious in the 2030s.