Platform functionality: Beware change for change's sake

I recently came across a YouTube review of my favourite restaurant in London. Since I know the place so well, I fast-forwarded to the closing remarks. I was delighted to see a score of 9.5 out of 10 awarded.  The food was duly praised (I heartily recommend the steak-and-kidney pie, by the way). So was the service. But what appeared to hit the spot most decisively was the fact that this establishment has barely changed in centuries.  The venue in question is Rules, which was founded in 1798. You may have seen it in an episode of Downton Abbey or in the James Bond film Spectre, in which...