[sollewitt]

"This is bad because of externalities, the externalities are big and will grow" is exactly why we don't have general nuclear power, saying it's the only argument doesn't make it a weak argument.

[ajiang]

When the cost is directly paid by the actor, it isn't an externality. It is the literal opposite of what externality means.

[drdeca]

carbon emissions aren't currently paid for by the person paying for and using the electricity?

[detaro]

And pollution is usually not, or only partially, paid for by neither the energy producer nor the consumer. Thus it's an externality.