As an AI language model, I don't have access to real-time data or the ability to conduct original research. My responses are based on the information available up to my last training cut-off in January 2022.
Estimating the number of individuals who left Africa 60,000 to 90,000 years ago involves a degree of uncertainty, and there isn't a single consensus estimate among researchers. However, some genetic studies and population models have suggested that the number of individuals who migrated out of Africa during this time period could have been in the range of a few thousand to tens of thousands.
One influential study published in 2016, which analyzed genomic data from modern human populations, estimated that the ancestral population that migrated out of Africa may have consisted of around 1,000 to 5,000 individuals. However, it's important to note that this is just one estimate among many and that different studies may produce different results.
Overall, while we can make informed estimates based on genetic data, archaeological evidence, and computational models, the exact number of individuals who left Africa during this time period remains uncertain and subject to ongoing research and debate.
意思是說，五千人離開非洲，五千人滅共足已，
