Yes, I think it's realistic if we look at how things in computing have changed even just within the last few decades.

https://gs.statcounter.com/browser-market-share#monthly-200901-202603 in early 2009, IE was at ~65%, Chrome at <2%, we've gone from that to "IE does not exist" and Chrome in the same spot IE was then

https://gs.statcounter.com/os-market-share#monthly-200901-202603 in early 2009, Windows was at ~94%, now it is at ~26% with Android having taken the top spot, even that is just at ~37%, so there is now no dominant operating system overall

https://gs.statcounter.com/os-market-share/desktop/worldwide#monthly-200901-202603 even disregarding mobile devices, Windows has fallen from ~95% to ~61% in that time frame

and maybe I'm just old but early 2009 doesn't seem an enormously long time ago somehow