Consider if IPv4 source and destination addresses in IP datagrams were textual rather than 32-bit fields. IPv6 might not be necessary, NAT might not never have

Consider if IPv4 source and destination addresses in IP datagrams were textual rather than 32-bit fields. IPv6 might not be necessary, NAT might not never have had to be hacked on to the Internet, and most of the centralized cloud model that is pervasive today may just not have had an opportunity to take hold.