[Matc]

Even if we find other resources they will be finite. It's a very experimental plant, ongoing reseach has to be done while it's being built. And think about how long current renewable sources have been in development. Well over ten years. It is very important that we also think about long term energy solutions as well as short term ones. A working fusion plant will produce virtually zero of the harmful emissions we currently produce. There are no long term radioactive isotopes produced and no risk of a catastrophic meltdown. And unlike solar or wind it is done in a small space without massively disrupting the landscape and habitats. A working plant that actually produces commercial electricity is expected in about thirty years.

The chances of us not needing it are remote. Energy consumption is rising and rising while conventional reserves are dropping. Any new emerging technology would still be needed to be researched, tested and implemented so whatever it was you would be looking at a long time scale.