He makes it clear that if the humans use nukes, then they will nuke them back, which will destroy the Earth.
शोधकर्ताका अनुसार यदि प्रजननदर बढाउने उपाय नअपनाउने हो भने धेरै देशमा जनसंख्यामा गिरावट आउनेछ ।