Because we used to be a high trust society where degenrate gamblers wouldnt mess with scientific equipment to rip each other off

I am a bit surprised by that for a scientific application where you want high accuracy reading. Temperature sensors has a error margin, and I think they can also drift a bit.

In a bit of expensive equipment I own it happens to have 4 temperature and pressure sensors, located in two different locations on the unit. All of them generally disagree with each other on the exact temperature by around 0.1 C, which is fine for my use of it.

Why didn't you put two locks on your door? Clearly you deserved to get burgled if you only used one.

Building Byzantine fault tolerance into absolutely everything is expensive, and makes everything we do and buy more expensive. It would be better and cheaper to rely on social trust, if that's possible-- and it was possible before these gambling sites. Prediction markets are burning social trust as fuel to make profit, they should be heavily taxed, the way polluters are taxed, as destroyers of the commons.