This is something weird to me. I think skin color is pretty diverse no matter where you go, or at least, I don't know enough to say otherwise. But take hair color. Europe has more diversity in hair color than almost anywhere else. Same with eye color. Why is this? Is it just because I interact with more people of European heritage on day to day business, or has Europe actually had more mutations which affect hair color, eye color, etc? Or is it that Europe, being a crossroads has had more people immigrate through it.

If this is racist, it's unintentional, this is just an observation, which I've been unable to find an answer to.

If you have an answer, a link to a paper would be great.

Edit: A point against what I just wrote that I thought of: Asia has both mono and double eyelids, which is something Europe doesn't have. Native americans don't count either for or against, since they immigrated fairly late in a small group, which also explains why almost all native americans are type O

Kitchen knives are frequently used to stab people. This results in serious injury or often death. Most stabbing murders are perpetrated with kitchen knives, reflecting the huge numbers of knives available (most homes have one), and where most murders happen (in the home). (I'm talking about UK here).

Kitchen knives have a cutting edge and usually a sharp piercing point. There's nothing that can be done to make the cutting edge safer. But we can look at the pointy tip.

Pointy tips are useful, but we tend to find that only professional chefs or experienced home cooks use them. Most people cooking at home don't use or need such a pointy tip.

There are some companies releasing knives without the pointy tip, and I'm interested to know what you think.

https://twitter.com/JohnHMCrichton/status/1209095901102387200?s=20