There is probably a lot Cardano can do for Africa and its tens of huge countries, but I’ll need to move out of my african countryside to check this video entirely. Most of us have an Internet access problem. In my country (Ivory Coast) people rarely have unlimited access to Internet and pay each byte they download.
Therefore it would really be interesting to also see off-line extension of the blockchain. Something like a paper based low tech side chain, with obviously low latency but far greater adoption potential than the actual smart phone and Internet based solutions.