Slightly related issue: In the thread about water heating, I was going to post a comment about using a heat bell between the flue gases and water jacket. I tend to confuse “heat bell” and “smoke bell,” so I checked with Google to clarify. Google was sure I meant Heath Bell, so that’s what it showed me. It asked if I mean Heath Bell, but as far as I know, there’s no way for me to say no. So I tried “heat bell” (in double quotes). This got rid of the major league pitcher, but nothing about heat bells until the bottom of page 7 of results.
I tried DuckDuckGo, and it showed the pitcher, but asked if I really meant “heat” bell. I clicked on that, and the first hit was “Stratification chambers (Bells) explained” (rocket mass heater forum https://permies.com)
So I am again reminded that Google shows me what it thinks I want, not what I asked for. I’m not suggesting evil intent, but it’s something we need to take into account when looking for information.