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Is there a review of all the ycombinator startups somewhere?

I think I have seen such data before, at least about how many of them were still businesses out of the total number of funded companies.

(Btw is it Firefox or Hacker news that is correcting spelling?)

I am curious about computational complexity, P, NP and so on.

Wikipedia gives a good basic insight but doesn't go very deep.

What books do you recommend? Plus points for one that discusses how parallelism fits into this.

Would there be an energy crisis if we replaced all powersources with nuclear power plants? And then started using electric cars?

And then put all energy-research into solarpower to replace nuclear power when there is a major breakthrough?

I'm hardly an expert but it seems most other alternatives are either not viable or they are just a trade-off.

There is so much talk about concurrency and parallelism these days.

Well Erlang is made for concurrent systems right? Not multiple cores.

Clojure

Scala

What other languages are made for programming concurrency? And are they made for concurrent systems or multiple cores?

What are the differentiating requirements between such languages?

The Android mobile platform is supported only by JAVA? Correct me if i am wrong.

Anyway, what does that mean? That you can only program in Java for it or only that you need to compile to bytecode via the Java virtual machine?

So could I write apps in Jython, Scala or Clojure for sucha platform and that would be fine since they run on the JVM?

  ""Having users is like optimization: the wise            
    course is to delay it."
      -- Paul Graham"

is that really a PG quote? a guy had it as a signature on the erlang mailing list.

isnt customer sgood to get early for feedback? why should one delay launching? or am i misintepreting?

Not exactly the right place for this question perhaps but lets say I want to have solar energy in my home and not coal or nuclear or whatever.

Are there companys that produce such power and sell it coming in as electricity to my house or the only option is to buy my own solarcells and put them on the roof of my house?

If I live in an apartment I cant choose right?

I am airly good at programming, I know a few languages and frameworks.

I am not a professional yet however and I will go to college a bit at least.

What math courses are essential to programming/computing?

I'm thinking:

Linear algebra(used in machine learning neural nets) Matrix-stuff(graphics?) Statistics/probability(good for everything, used in machine learning etc) Graph theory(search etc)

More?

Which programming languages should I learn if I want to do mobile apps?

Which can you use for each platform?

  * iPhone: Objective C(only?)
  * Symbian-phones(Ericsson, Nokia etc): Java and C, Python on some Nokia? Correct?
  * Android: Java? Or any language since it is open source? Or it only has to compile to the Dalvik VM? According to:

http://www.scala-lang.org/downloads/targets/android.html Scala can be used. What about Clojure?

Other platforms?

I am into machine-learning already and I want to get into fabbers and self-replicating machines and nano-technology.

Is there any field that combines them all? Like could I use machine learning to figure stuff out in nano-tech?

I'm having a year off but will start uni next autumn and I have a hard time figuring out exactly what to study.

Main interest in machine learning is computer vision but really everything is interesting.