Yes. This means there has been a continuous line of humans in South Asia, from Buddha Kassapa to Buddha Gotama.
- The geography may have changed somewhat, but as stated in #6 of the post, “The Buddha provides a similar account in the “Vepullapabbatta Sutta (SN 15.20).” He describes how a particular mountain had three different names and heights during the times of each Buddha.”
Also, note that even if most of the human population is wiped out (that could have happened before Buddha Kassapa), even a relatively few surviving humans can “regenerate” or “build back” the human population over time since most of those who died in a calamity would stay in the human gandhabba state.