Tsvi B. T. (TSVIBT)

That alone makes this method worth trying, as it will probably be feasible soon.

Subheading Interface with brain tissue in a vat Quote

Grow neurons in vitro, and then connect them to a human brain.

End quote.

The advantage of this approach is that it would in principle be scalable.

The main additional obstacle, beyond any neural-neural interface approaches, is growing cognitively useful tissue in vitro.

This is not completely out of the question, see the dish brain, but who knows if it would be feasible.

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Method.

Grow greater than 10 to the power of 8 neurons or appropriate stem cells in vitro and then put them into a human brain.

End quote.

There have been some experiments along these lines at a smaller scale aimed at treating brain damage.

The idea is simply to scale up the brain's computing wetware.

We don't know how to make high-quality neurons in vitro.

The arrangement of the neurons might be important and would be harder to replicate.

Using donor tissue might fix this, but becomes more gruesome and potentially risky.

It might be difficult to get transplanted tissue to integrate.

There's at least some evidence that human cerebral organoids can integrate into mouse brains.

Problem solving might be bottlenecked on long-range communication rather than neuron count.

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