Our minds are pattern recognition machines. Their purpose is entirely to identify and compare patterns. Our brains do this so well that we often find patterns even when they aren't there. In fact randomness often looks like a pattern to people (if you need proof of this go look at a sky full of clouds). I feel always look at the clock at 11:47. I have felt this way since at least I was four, but probably even before that. I could say that 11:47 must have some significance in my life, but why? Even the idea that I look at the clock when it's 11:47 would cause me to remember the times I looked at the clock when it was 11:47 far more than any other number.
For anyone who has strong beliefs rooted in memory, I highly recommend looking into an experimental psychologist named Elizabeth Loftus. Her research has showed that memory falls flat of being reliable and even is malleable by suggestibility. Due to her research I'm not even sure every time I think I remember seeing 11:47, it was 11:47. Just believing that I do look at clocks at 11:47 could create memories of looking at a clock at 11:47.
Now, even if faulty memories in support of observer bias wasn't enough, there is more observer bias; just in case you don't know, observer bias is selecting out only evidence that supports your positions. Everyone does this. I've seen very smart people's observer bias and even great scientists and Philosopher like R A Fischer or Aristotle fall into the trap of observer bias. In numerology, if you are looking for a particular, rather simple pattern, you will find it just due to the vast amount of patterns your brain is able to identify. I see no reason to put extra emphasis on any number because someone notices it often.
I'm curious what numerologists think numbers are?
