Widespread VR device usage will be defined as over 50% of the US population. Source for user count will be https://www.demandsage.com/virtual-reality-statistics/ if such source is still available and updated, else I will find a different source and make a recalibrating adjustment. And for US population I will simply use Google search to get a reasonable estimate.

For comparison smartphones passed this threshold around 2012 or so.

AGI will be defined as in this market

https://manifold.markets/RemNi/will-we-get-agi-before-2027-d7b5f2b00ace

Since we don't have high accuracy/resolution data on timing of these events, if it is too close to call which actually came first I will resolve to 50/50.

Since there is some subjectivity in resolution I won't bet (at least not as a human my api trades might do it).