What do you mean with more that anything that an amiga can do ?
If you own a real Amiga you are limited to that model. Software designed especially for another Amiga model does not run or it's difficult to get it to run.
You can add expansions but you are still limited to 10 or 15 years old hardware. And once you start to add expansions, less and less software runs on that machine.
With WinUAE it's much more easy. If you want to run software designed for an A500 you make WinUAE be an A500. If you want to run other software which is designed for an A1200, you make WinUAE be an A1200. And you can even make WinUAE be a CD32 and run CD32 software from CD.
And finally you can make WinUAE be a fantastic high-end Amiga which the world has not seen before. With 8MB Chip-RAM, 512 MB Fast-RAM, 128MB 3D gfx card, sound card, internet, DVD-Writers, huge HDDs, 1 GHz 68040 processor etc.
And all that is displayed on your modern flat screen without any expensive adapters, scandoublers etc. You use your wireless optical mouse, wireless keyboard, analogue gamepads, USB memory drives, even wireless LAN.
Bye,
Thomas