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Hey! I’m Blocko and the other day I was asked how long humans have been around?
大家好！我是宝高！前几天有人问我，人类存在多久了？
Within the history of everything we know from the Big Bang to this moment, where do human fit in?
从宇宙大爆炸到现在的这段时间里，人类在哪个位置？
This may be difficult to believe but humans are pretty new and have only existed for a tiny fraction of time.
人类出现得非常晚，只存在了很短的一段时间，很难相信吧！
Modern humans (Homosapiens) have been around for about an estimated 200,000 years.
据估计，现代人（智人）存在了大约20万年。
To put this in perspective, hold out your arm in front of you. Your shoulder is the big bang.
举个直观的例子，向前伸直手臂，你的肩膀就是宇宙大爆炸。
Somewhere around the beginning of your fingernail is when dinosaurs existed and humans start to become a possibility right around the tip of your finger.
开始长指甲的地方出现了恐龙，指尖可能出现了人类。
If you took a nail file and shaved off just a little bit of your nail, that would be all of human existence.
用指甲刀搓掉一点点指甲，那就是人类的全部历史。
Rome, the pyramids, the Middle Ages, the Civil War and yesterday... just in that tiny bit of dust.
罗马、金字塔、中世纪、南北战争和昨天……都在那一点点尘埃里。
We are in fact newbies.
我们其实都是菜鸟。
I'll be answering a new question every Thursday so ask anything you want to know in the comment section below or on facebook and twitter.
每周四我都会回答一个问题，请在下方评论区或者脸书、推特上留言提问。
And don’t forget to keep on thinking!
思考不要停！
