In response to those quoting studies recommending complete tech abstinence, I respect your goals and welcome your information. However, as with many things, while fools should abstain, some can use wisely. My 1 year old spends most of her time playing with peers, playing with toys, and acting silly. In small doses we count, write, play music, read, use laptops, stargaze, philosophize (yesterday she suggested that wild animals might move into barns if we offered them noodles), and I am constantly amazed at her. Her IQ is off the charts, she is already in age 3 classes, and while we can debate whether technology helped or hindered, my deep opinion is that everything I expose her to increases her sense of wonder, and that is what is giving her this wonderful momentum. If you just shove a computer in a kid's face and walk away, you're likely doing it wrong.

My 22 month old mostly plays with physical toys, but after seeing her love banging on a piano, I decided to let her play with my midi controllers (supervised, no liquids). I will load up a virtual synth, put on an arpeggiator sometimes so she can make more structured sounds, or put on a drum kit, and then she'll go wild on the keyboards/drumpads. You can find used midi gear dirt cheap, especially if a few keys are broken (toddler won't mind). She also has figured out the controls for VLC (video player) on her own. If you have gear that you don't mind breaking, you'll be amazed what they figure out so young. Just be sure to spend way more time outside than inside and they should be fine. She also likes to play with touchscreen drawing apps on my droid, but she has even dialed 911 by accident so I can't recommend it without constant supervision.

All you need to code Twitter is any language that can wrap SQL....

Add tweet: INSERT TABLE x (x) VALUES (@x, @userId)

Retrieve tweets: SELECT * FROM x WHERE UserId = @userId

I do respect some aspects of Scala, but using Twitter as a mark of success is worse than Hello World.

What is more likely:
1. China is conducting military hacking activities against allies in such a way that will attract negative attention.
2. China has a lot of easy-to-hack computers that more sophisticated non-Chinese hackers are using as relays for their own hacking.

Perhaps it is both, but I would bet that there is a whole lot of #2 going on.