I envisage a ‘mothball computer’ – a capsule with the case whose outer surface harvests power from the environment and inside the capsule we have the computational electronics.
High-speed clocking can be provided by EM of highest possible frequency – e.g. by visible light, X-rays or ultimately by gamma rays!
Power supply for modulation electronics can be generated by solar cells – Perovskite cells. Because Perovskite cell have lead in them they can insulate gamma rays from propagation outside the compute capsule.
Information will be in the form of time-modulated super-HF signals.
We will represent information in terms of time-averaged pulse bursts.
We will have a ‘continuum’ range of temporal compute which will operate in the range between deterministic one-shot pulse burst (discrete) through deterministic multi-pulse analog averaged signal to stochastic multi-pulse averaged signal (cf. book by Mars & Poppelbaum – https://www.amazon.co.uk/Stochastic-Deterministic-Averaging-Processes-electronics/dp/0906048443)
Temporal Computing (https://temporalcomputing.com) is the right kind of business opportunity for this Odyssey!