I've definitely heard the name David Mach before, but I really don't know who he is at all.
I like David Mach's work. He's a Scottish sculptor. 
Oh wow I had no idea. What else do you know about him?
He was born in 1956 in Methil, Fife.
He's older than I expected, and where even is that?
Scotland. He's style is is typically based on the flowing assemblages of mass-produced objects
Interesting! So what made him so well known then?
He's style I guess. One of he's early sculptures was Polaris.
Huh, I guess that makes sense. You really seem to know a lot about this guy!
Haha I guess I enjoy he's work. The polaris sculpture is exhibited outside the Royal Festival Hall, South Bank Centre, London