They developed these usable for ever more efficient better faster more capable complex computer brains for robotic devices both here and out in frigid cold outer space, also possibly for future very advanced better thinking computers to even be implanted into themselves and linked with their old brains! Thus no freezable liquids were allowed. Also nothing partly soluable was allowed if maybe to be implanted into one's body. Several thought it might be better to form these not as hard stiff solids, but as having somewhat flexable molecular matrices, maybe even soft in places.
There wasn't the slightest need to rush any of this. Present computers were doing well. They could give decades for extra complex refinements to be thought up and tried. Several improvements were conceived, tested, then improved more.
The most improved complete molecular matrix computers were tried in a few robotic devices. They provided a bit better vision, sound, touch, etc. receptor resolution sensitivity. And being a bit compactly smaller while being more computer capable, and operating efficiently faster, they could be programed to let them perform better and sometimes mildly adapt to partly new situations. How they performed sometimes suggested more fresh improvements.
If always inside the Fullball world, such improved brainier robots were given average temperature heat to electricity converters. Then little need to charge up batteries, or receive energy beamed to them, or plug in to electricity unless doing some extensive energy consuming hard physical tasks. (Their activities would return reusable heat into themselves.) Or if out in space, they could get all energy as before from external Solar energy converting films, or operate a while from special rechargable batteries (having no liquids).
Improved molecular matrix home computers were also tried. They soon efficiently outperformed past ones.
(A more distant future possibility might be quantum computers, imagined able to perform certain computational tasks exponentially faster than classical computers?)
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