What was the estimated cost for the steel component of the Death Star II (900 km diameter)?

Answer

Around $852$ quadrillion US dollars

When analyzing the potential financial constraints of constructing such a massive object, even focusing only on the raw materials provides a staggering figure. One specific analysis concerning the much larger Death Star II, which possesses a diameter of 900 kilometers, estimated the cost of the steel required for its structure alone. This calculation placed the price tag for the steel material at approximately $852$ quadrillion US dollars. However, the text emphasizes that this material cost is secondary to the true barrier, which is the astronomical labor, infrastructure investment, and the energy cost associated with launching and assembling billions of tons of material against Earth's gravity well.

What was the estimated cost for the steel component of the Death Star II (900 km diameter)?

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