Is it true that Homo sapiens "went out of Africa" and then spread across the globe?

The Road to Homo sapiens: Genetic Evidence Rewrites 600,000 Years of Human History [de] Johannes Kranzer [de] Thomas Trappé translated by Wang Kun Modern Publishing House

Guangzhou Daily News (All-media reporter Wu Bo) Recently, the popular science book "The Road of Homo sapiens: Genetic New Evidence Rewrites 600,000 Years of Human History" was introduced and published. The author of the book, Professor Johannes Krauser, is a leading figure in the field of human history research, and has played a key role in deciphering the Neanderthal genome and discovering unknown hominids (Denisovans). Is it true that Homo sapiens "went out of Africa" and then spread across the globe? Why did our ancestors emerge from the competition for three subspecies of Homo sapiens? How did the early hunters and farmers have different genetic manifestations? How did migration lead to a return from the Bronze Age to the Stone Age? How do infectious diseases such as plague, leprosy, and tuberculosis roam the continents with humans? The answers to these questions can be found in this book. This book is a social science book that interprets human history through genes. Johannes Krauser tells the history of human survival, reproduction and development from the perspective of genetics and genes. The genetic history told in this book is actually a common story for us humans. Our bodies carry the past. In each of our chromosomes, the complete history of our species, life and death, disease and war, famine and migration, is recorded.