70 real actions and 630 useless clicks.

APM accounting in SC2 is dumb and broken for Zerg: if you're building 100 zerglings, you select all of your hatcheries with one action, select your larvae with one action, and then hold down Z for 100 actions in a split second.

It's not unreasonable to have 200+ real APM in bursts, though. For example, at the beginning of games in Brood War, pretty much anyone competent is going to do something along the lines of the following in about 3 seconds:

  click command center
  build scv
  select all scvs
  mine a mineral patch
  select a scv
  mine a different mineral patch
  select a scv
  mine a different mineral patch
  select a scv
  mine a different mineral patch
  click command center
  set command center hotkey
  set command center rally point
  set camera hotkey

which is 280 APM. You'll see similar bursts during macro cycles, which are generally just (click building, press M) repeated 10 or so times in a short period.

It's more like 300 or 400 real actions during the heavy, action-packed moments. It's just insane. I doubt I can even click a mouse that fast.

This comment makes me think you have never played starcraft.

Have you? It's "easy" to get an APM over 1,000:

Step 1: Hotkey units on 1-9

Step 2: Slam face on keyboard numpad

Holding down a hotkey to build things (even if you don't have the minerals) also increases your APM.

Lots of players (especially the pros) will spam actions in the quieter parts of the early game to keep their fingers warmed up, or to start building a unit the millisecond they have enough minerals to afford it.

I play a ton of SC2 and he is mostly right.

I've reddit[1] as programmer and it's terrifying to think somebody can bang out code at that speed for 20+ min beside you.

[1] pun intended