The video discusses the rising adoption of cryptocurrency in Africa, particularly with the introduction of Yellow Card in Rwanda. Yellow Card provides a convenient and secure way for Rwandans to conduct digital transactions using cryptocurrencies. To use Yellow Card, individuals must create an account by providing basic personal information, after which funds will appear in their account balance. Once the deposit is confirmed, users can start buying and trading cryptocurrencies. The video also mentions terms like blockchain business, peer-to-peer cryptocurrency, and digital wallet Bitcoin, highlighting the growing popularity of cryptocurrency in the region. Additionally, viewers are encouraged to check out a free ebook on cryptocurrency in the video description for more information on getting started with cryptocurrencies.