Why did David kill the engineer population?

That is all true in the movie ... but it doesn't explain motivation, unless there is just something wrong with him. The question should be what is his motivation, not how much creativity he had to figure out how to do it.

heheehe yep

That explains the "I'll do the fingering" scene... ;)

Well put, AtomicReturns.

Also, David said he'd learnt from the Engineers that sometimes, in order to create, you must first be willing to destroy. As you say, the people David killed were another seeding by the Engineers -- not Engineers themselves -- and as such they were in the way of David's plans. He wiped the ecosystem of the planet, to clear the decks for the new order of life he was developing. From that first conversation with Weyland, David was driven by exploring the role of Creator.

> David, isolated for so long and being the first model, has become more human-like

How could that he ... how could be become more human-like when he was not around humans?

It's really chickenshit for Ridley Scot to personally verbally add stuff to the movie out of the fricking movie, and I'd say, even if he said that it must be disregarded and the movie must stand on its own ... which it does not.

The question to me is what is his motivation. What does he gain or what does he hope to accomplish by murdering, at least what he thinks are the engineers?

One thing that could explain this is he wanted revenge for what the engineer did to him and his "father" on the planet in Prometheus, but that would not explain why he would experiment on Shaw.

So much does not make sense in this movie, I really don't like it ... or Prometheus.

David just felt like being a dick that day!

Wait, that was the ONLY place on the planet where those silly bald albino steroid freaks lived ?

That's never been stated. This would just be their home planet, not the sole place they exist.

Making my night here, bud. lel

https://www.youtube.com/watch?v=3ONSFeRy9iQ

Take this for what it is. It was discovered in the early drafts of Prometheus that the engineers used to be an all powerful race but in their genetic tampering (playing god) they lost the ability to procreate. So they were slowly dieing off and in regression for thousands maybe millions of years.

They discovered the blood of the xeno could create life if consumed and that was what they were doing on the planet during the opening of Prometheus. However, all of their creations including humans seemed inferior to themselves and violent so they kept killing them off. The planet in Prometheus was a test site for them trying to create xeno's so they could create more. And we know the after math of that.

That's why they are all celebrating when David's ship shows up. They thought it was their test site coming back to announce good news. But as we know it was David caring a death load they had been using on their own creations ironic.

So long story short the engineers were so bad in decline that there are not very many of them left and that's why even on their home world the population is in a single city all band together... Probably so thin over time they decided to congregate in a single city to host what was left of their society to the best of their ability.

I suppose that's not to say there are not more of them spread across the galaxy.. I'm just assuming if their home world is that barren you not going to see another collection that size.