We are perfectly adapted for a part of Africa and that's pretty much it. Without technology (which goes from igloos to central heating) we would pretty much freeze to death anywhere else.

> We are perfectly adapted for a part of Africa and that's pretty much it.

Not the British or the Irish. These particular designs have not been contrived to withstand ambient temperatures exceeding +20C, with a very low degree of heat tolerance built-in. The two designs are very prone to inadvertent self-ignition and burning up in flames when exposed to the direct sunlight with almost no leeway available to them whilst being generally a reliable and pretty sturdy design otherwise. For that reason, both specimens usually come off the factory equipped with a fire extinguisher that nearly immediately either gets lost or drunk away (usually the latter).

I wonder how man 3000 years ago survived in North America and Northern Europe without technology.