One Hundred Million Giga Hash per Second! Holy mother of god!
This is actually a really interesting benchmark. I'd say the network is *approaching* secure. Another 10x-100x and I might be willing to call it.
100 PH is interesting because that's about what the NSA's new 60MW datacenter in Utah could generate if you fill the whole thing with 0.5W/GH ASICs.
Obviously they're going to have to non-public datacenters that are likely a good deal larger, but still...the above observation shows that the network really is achieving a scale that's nearing real security.
Sidenote: the growth-rate this past year has been astonishing. I recall when I first made the above calc, I thought it'd be years before we got here. Bitcoin's growth continues to impress me.
The decentralization of the hashing is another issue.
Otherwise folks wouldn't care about the NSA so much in the first place.
