fn compute_b_kh_o<V: MyFloat>( state: &StateOpinions<V>, fixed: &FixedOpinions<V>, b_o: &MArrD1<O, SimplexD1<B, V>>, base_rate_kh: &MArrD1<KH, V>, base_rate_b: &MArrD1<B, V>, ) -> MArrD2<KH, O, SimplexD1<B, V>>