ipv6.google.com [google.com] is IPv6 only, and if you can reach it, you are IPv6 enabled.
makes assumptions about your network and its services (like DNS) which are not guaranteed to be true.
[craig@Puck:~]$ host ipv6.google.com
ipv6.google.com is an alias for ipv6.l.google.com.
ipv6.l.google.com has address 208.67.219.132
ipv6.l.google.com has IPv6 address 2001:4860:800b::69
ipv6.l.google.com has IPv6 address 2001:4860:800b::68
ipv6.l.google.com has IPv6 address 2001:4860:800b::63
ipv6.l.google.com has IPv6 address 2001:4860:800b::6a
ipv6.l.google.com has IPv6 address 2001:4860:800b::93
ipv6.l.google.com has IPv6 address 2001:4860:800b::67
> The software's main advance is a user-friendly search tool that can scan multiple data sources at once, something previous search tools couldn't do
OMG! Did someone finally discover the hidden "UNION" conjunction in SQL?
...which is why Peak Oil is much less scary from the energy angle than it is from the Haber Process angle. Fertilizers and anti-biotics are far more important to maintaining the world's current population levels and density distributions than any particular form of energy storage.
I hope you dutifully backed up a copy of the HD-wiping virus!
It would sink to the bottom of the soup pot though, so as long as you just scoop from the top, you'll be OK.
So we end up with a computer simulating a human pretending to be a robot, that is disguising itself as a human!
Steps to reproduce at no effort:
1. Go to any hosting provider which uses VMs (let's say Amazon EC2).
2. Sign up for new account, get your root access on your own VM instance on the shared host.
3. Execute exploit; take control of any other VM on the same physical hardware as you.
There, that wasn't so hard now, was it?
This is why I always use blank passwords! Take that, keyloggers!
There's another "use case" too which is not a kernel crash or power outage (well, not in the sense you mean). I have seen many non-technical computer users power off their machines when they're done using them by just holding down the power button until the screen goes dark. Going through the whole "click menu -> shutdown -> wait 10 minutes" routine is too much trouble. And they're not wrong -- why should I sit there and wait for 10 minutes to turn my machine off when I'm done using it?
An Ada exception is when a routine gets in trouble and says 'Beam me up, Scotty'.