If I interpret "a machine superintelligence" as "a classroom of 300IQ humans," I'm not really sure how this is true? You still have material and energy constraints, you can't think your way out of those.
For the concrete problem we're discussing, you can hack your competitors out of existence, replace all of your knowledge workers to shed costs, hyperoptimise your logistics, etc. It's not just intelligence, it's speed and scale.
Bostrom's Superintelligence (2014) is a bit of a dreary read, and I didn't finish it, but it pulls no punches about the leverage that a superintelligence might have in our highly-connected world.
For the concrete problem we're discussing, you can hack your competitors out of existence, replace all of your knowledge workers to shed costs, hyperoptimise your logistics, etc. It's not just intelligence, it's speed and scale.
Bostrom's Superintelligence (2014) is a bit of a dreary read, and I didn't finish it, but it pulls no punches about the leverage that a superintelligence might have in our highly-connected world.