I don't understand how that corrects what I wrote. I was not trying to describe the technique, I was trying to fill in the "what is the topic" part that has to be inferred from scattered details you provided ... because you took for granted that everyone knows the basic meaning of the phrase "Digital Cinema".

Indeed, I had no idea how its done ... but then as an economist, there are many details on how its done that I wouldn't need to know. The prior question is what is being done.

Whether the technique involves light projected on the screen through something or bounced off mirrors or whatever .... the main material difference from the status quo ante thing is that instead of physically passing the image through the projector, the image is generated inside the projector based on the contents of a computer file. There are enough details to work that out from the diary, but if someone is disoriented as to what the topic is, they could easily not see the implications of those details or even not get that far.


I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.