When we can turn off distress and pain in farm animals we would have done more to improve well-being in the world than anyone alive today. Factory farms stop being an efficient evil and become the only moral way to produce meat.

And as a side effect we also get super intelligence on a substrate that is 10 orders of magnitude more energy efficient than silicon.

This is literal supervillian wire-heading type stuff. Poorly thought out ideas of a madman with no regard for the consequences; just vague claims about the definite super-good idea of direct brain state manipulation.

Do you mean we'll input their brains with an alternate reality or just removing their pain and distress signals?

Regardless of the answer. Lab meat still seems more ethical, it was never a sentient being in the first place.

That person has no idea or even care for what is or isn't ethical outside of other people maybe being upset about it and trying to stop them.