Is Buy and Forget a Myth?

Few days back I shared a paper experiment which I did in the past and claimed that buy and forget worked although the time span was mere 4 years. However, I suspect that some might think that it was a backtested model instead.

So, I am starting a new paper experiment with a 15 stock portfolio that I created on equal weightage basis with buy date of 28th April, 2023 (based on closing price). No further additions or withdrawals will be made to this portfolio. Adjustments will be made for demergers. I plan to update it’s performance on a yearly basis. The stocks were chosen based on the earlier stated criteria. Entry valuations in my perception are in fair to undervalued region.

Note that it is not a portfolio that I currently have.

Now this might seem like a childish idea but I still want to go about with this as I am a firm believer of buy and hold kind of investing, although I am fully aware that it is extremely difficult to practice in real life.