An everyday example. I read something on CNN and need to tell someone about it and quote something from the article. Do you know the hassle of going out, opening another app, typing start of email, going back to article to confirm info and stats are correct, then switching back to finishing email. And then, let me just check I covered what I needed to say before mail and checking article again to ensure I quoted correct facts and figure. Note that copy and paste may work but my emails summarizes my findings and I summaries my findings in my emails. Link to article provided for ease of reference. Oh, and that too. Copy link, go into another app/another screen, paste. Inefficient to say the least.
Give me 2 apps one below the other. One screen, all information on hand.
Multitasking has been out since 1995 with Windows 95

I remember downloading info from the server and working on my word document whilst that happened.
Surely we've moved on since then? I thought having one app opened, selecting text, copying, minimizing and opening other app and pasting was gone? Seriously, that is so Windows 95 (maybe even before?)