If you ask me to remember the last but one thing I said to someone I live with in my house, or the last thing they said to me, I wouldn't remember that either.

This doesn't mean I don't remember them, but my memories of these events are not structured as a temporally ordered list.

I can say with high likelihood some of the things I googled recently, and a good selection of the reasons I was googling, just as I can talk about things I discussed recently, even if I can't index them, but expecting that to be addressed in a sorted list is to confuse the simplicity of formulation of the question with simplicity of implementation.