越来越多的人支持这样一种理论，即移民发生得要早得多，是沿着阿拉斯加沿海路线，沿西北海岸而下通过海路进行的。
There is growing support for the theory that migration took place much earlier, by sea, following a coastal route along Alaska and down the northwest coast.
移民的影响比这些理论家假设的要复杂得多。
The effects of migration are more complex than these theorists presume.
他们浅尝阴谋理论，谈论文明的瓦解，谈论投资者需要卖光票据资产、购买黄金并撤到爱达荷（美国西北部一州，1860年当地发现黄金，引发了移民潮）去。
They dabble in conspiracy theories and talk of the collapse of civilisation and the need for investors to sell all paper assets, buy gold and retreat to Idaho.
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