I've been reading it again, only this time there is one huge difference. This time I know that every person, place, event, device, fashion, city, district, mode of transport, incident, meeting, style, advertisement, invention, fad, gimmick, building or work of art mentioned in the text is available on the web on just a couple of clicks.
This has two interesting effects. It makes me wonder how much I bothered looking things up in reference books when I read the novel first time round. Did I just treat it all as an invention embroidered on top of fact and just read round the bits I couldn't decipher? Did I accept that finding out things was quite an onerous task? (I've just read a passage where J.P. Morgan and Henry Ford dine on Chincoteagues, which I now learn are ponies.)
Just as it was onerous for me back then I assumed it took an equally special effort on the part of the novelist to build this whole world for me. Reading it today with an iPad at hand is to realise to what extent Doctorow must have written his book by looking at a lot of old pictures and simply describing them. At that time this probably meant a lot of time spent at the New York Public Library going through their collections of news photographs, which seemed impressive in itself.
I'm sure that when Doctorow is no longer around to object Ragtime will be published in a pictorial version so that you won't even have to go to the trouble of firing up a web browser. What price fiction when that happens?