Yes. This is a complicated economical and geopolitical issue. There are several points why nuclear fission energy cannot dominate the market. The most significa

Yes. This is a complicated economical and geopolitical issue. There are several points why nuclear fission energy cannot dominate the market. The most significant offender here is the fact that nuclear fission can be arbitrarily expensive if you want to make it as safe as possible which makes it a partially political one as well; there's no single consensus on what is its levelised cost since the large fraction of it comes from upfront and decommissioning cost and we don't really have enough data points there. The equation gets more interesting since renewable energies have been becoming cheaper over the decade while the mainstream of nuclear fission energy technologies still generate nuclear waste which either can be repurposed into weapons or become your headache for an order of thousand years (in fact it's both). This is why many of the next generation reactors are focusing on reducing/eliminating those costs. We all know that nuclear energies are extremely competitive regarding fuel costs, operational costs and carbon emission. The issue is the large question marks I mentioned above so everyone in the industry is working on that. Remember, energy production is largely an infrastructural (thus political) issue, so public support is an essential part of decision making. Hopefully, there hasn't been much investment in nuclear fission technologies for a while, so we might have plenty of headroom to eliminate these uncertainties.