With bombs of this type you can chain things on several times and really amp up the yield. The theoretical limit, if there is one, is absolutely nuts, like 500M

With bombs of this type you can chain things on several times and really amp up the yield. The theoretical limit, if there is one, is absolutely nuts, like 500MT or more. The problem is that beyond a certain yield most of the explosive force punches up through the atmosphere and is wasted. Apart from shock and awe, not sure what the utility of something that big would ever be. Additionally since a spherical explosion of double the diameter takes eight times as much energy to create, you quickly run into diminishing returns. Lots of smaller bombs is more effective, hence MIRVs: https://en.wikipedia.org/wiki/Multiple_independently_targetable_reentry_vehicle https://en.wikipedia.org/wiki/Multiple_independently_targeta... Nuclear weapons are so awesome and so utterly insane at the same time.