主题：【原创】异人小记 -- 淮夷

http://www.scientificamerican.com/article.cfm?id=the-limits-of-intelligence

Summary

* Human intelligence may be close to its evolutionary limit. Various lines of research suggest that most of the tweaks that could make us smarter would hit limits set by the laws of physics.

* Brain size, for instance, helps up to a point but carries diminishing returns: brains become energy-hungry and slow. Better “wiring” across the brain also would consume energy and take up a disproportionate amount of space.

* Making wires thinner would hit thermodynamic limitations similar to those that affect transistors in computer chips: communication would get noisy.

* Humans, however, might still achieve higher intelligence collectively. And technology, from writing to the Internet, enables us to expand our mind outside the confines of our body.

粗译

*人的智力可能会接近其进化限制。各条线路的研究表明，大部分的调整，可以使我们更聪明将达到物理定律的限制。

*大脑的增大 对人类智力提高有帮助。但是到一个点后，但进行收益递减：大脑成为耗能大户和缓慢的。更好的‘联接’，也将整个大脑消耗的能量和占用空间的不成比例。

*更细的连接线会达到那些影响计算机芯片中的晶体管的类似的热力学限制：通信噪音会增大。

*然而人类整体，仍有可能实现更高的智力统称。 从书写记录到互联网的技术，使我们能够扩大我们的身体的范围之外我们的头脑。