Twitter algorithms – is it me?

Wikipedia tells me: In mathematics and computer science, an algorithm (ⁱ/ˈælɡərɪðəm/ AL-gə-ri-dhəm) is a self-contained step-by-step set of operations to be performed. Algorithms perform calculation, data processing, and/or automated reasoning tasks.

I understand that in marketing algorithms are used to suggest what you might like based on what you have liked.

So far so good.

So when Clare Hughes Dental liked something that I had posted on Twitter and followed me I followed her in return.

And then this appeared….

Is it me?