I understand the technology is difficult. My question is more about how is it that some countries have achieved a nuclear arsenal and other countries are still trying? You’d imagine if the scientists and engineers of one country could manage it, those of another country would eventually get it too. Seems an odd convenience that the most dangerous weapons on earth are prohibitively difficult to make. So few humans are smart enough to make them that only 9 countries have achieved it?
In: Engineering
Also keep in mind that some countries have had nuclear programs but they either shuttered due to cost or external political pressure. Essentially it’s expensive if you aren’t direct allies with Russia or the United States.
Also most nations are signatories to Non proliferation treaty of Nuclear arms. So countries like Germany have all the necessary resources and information it choose to not develop the weapons.
Other bits are that if a country is NATO then they are covered by the US’ arsenal since the arms are a pretty significant deterrent in the alliance
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