Given that no human species other than our own survives (Homo floresiensis disappeared about 18,000 years ago), the prospects for harmonious coexistence among future human species are not reassuring. In the worst case, the human genetic lineage itself could be wiped out by inter-species conflict.
由于除了我们自身之外，再无别的人种可以存活（弗洛里斯人大约在18 000年前灭绝），未来人种间未必能够和谐共存。最糟糕的情景是人类基因联系本身被跨物种冲突切断。