Complex sentence: The least controversial category of multiverse in Tegmark's scheme is, which describes distant space-time events "in our own universe", but suggests that statistical analysis exploiting the anthropic principle provides an opportunity to test multiverse theories in some cases.
Split into simpler sentences: The least controversial category of multiverse in Tegmark's scheme is, which describes distant space-time events "in our own Universe". Tegmark suggests that statistical analysis exploiting the anthropic principle provides an opportunity to test multiverse theories in some cases.