Yes, but it took something like 100 years after Bach's death before people generally believed it to be awesome IIRC. There were doubtless composers who were more popular at the time that we've never heard of.
I'm not saying you're wrong, I'm just thinking that it'd be better to keep everything and let the future decide.
>Linux proves this wrong. People built that when the market was completely dominated by Windows.
Not really, I remember first seeing linux when I was at university in '93/94ish. The computer labs there were mostly SunOS (later Solaris) with a few Windows (3.11, I think) machines for business students. Personally many people had Macs or Amigas (or Atari ST) - or indeed they had PCs but running DOS/DRDOS etc. Windows wasn't completely dominating in business at that point either (although it was clearly winning, thanks to running on IBM compatible machines), DOS was still prevalent but I remember entire trading floors where all the desktops were Sun Ultras. When I started work a few years later the software we built worked on OS/2, NT, Mac (OS 8, I think) and various Unixes.
I'd say the windows dominance wasn't long after, but the original Linux wasn't created in a market of complete windows dominance.
Whilst testing PowerShell for an employer I write a bf implementation in it. I was stumped for a while when I couldn't get one of the examples from wikipedia to run until I noticed that the code in the wiki article was broken. Correcting the article was probably my greatest contribution to computer science.