I know you used to work for ESA, or perhaps you still work. Anyway, there is a Norwegian company called Orbital Machines that are going to make electric turbopumps for launch vehicles. I participated in the first round in 2018, even though I have no knowledge of the space industry. Perhaps something you could be interested in (https://folkeinvest.no/kampanje/orbital-machines-as-2)? I would of course be interested in any negative sentiments you might have concerning the concept.
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