1) a method for shattering genomic DNA with symmetric tags that post hoc inform the ordering of adjacent fragmentation events in a way that is entirely independent of the primary sequence content;

I do not understand the detail, but I imagined the concept and made figure below.

The above strategy will enable,
1) We do not need complex assemble processes.
2) We can make a genome sequence without problems on repeated sequences.
3) We can get each haploid information separately. We can apply this technology to polyploid organisms like wheat.

A problem to be expected is multiple inserted tags.

When they complete the project and the technology is available, genome science will be renewed.

I found a related article:
Improving Twitter with a Bayesian filtering client
I’m very interested in the comment by Ian Mercer, but not found any related article in his site.

Python libraries for Bayesian classification

• NTLK: Natural Language Toolkit
• Reverend

Python libraries for Twitter API

• python-twitter
• oauth-python-twitter

It is well known that most wild animals have symmetry, like in zebra coat.

(from Wikipedia)

In tortoiseshell cats, they have genes related to the two coat colors linked to X chromosomes in the manner of hetero. One of X chromosomes is inactivated randomly in the cells at a stage of their development. If they are female, genes determining one coat color, black, are activated, and another color was suppressed by X-inactivation. It makes a colored patch, since the cells derived from it maintain inactivation of the X chromosome. Almost all tortoiseshell cats are female, since male have only one X chromosome and genes for one color.

(from Wikipedia)

I have heard from a manager of a pet shop that some kind of cat have symmetry in body coat pattern,  but pattern of most dogs could be asymmetrical in male and female.

What is the mechanism making asymmetry in male dogs? That may be not caused by X-inactivation. Asymmetry in body coat colors of cats and dogs could be related to the domestication by human. What are the molecular and genetic mechanism involved in making symmetry of body pattern in wild animals?

1.If they use @foo or @bar in their Tweets, the others can reconstruct their time line, from their Tweets.
2.If they do not use @ and it is well known that they followed each other, then the others can reconstruct the time line,.
3.If they do not use @ and nobody know that they are following, then it may be difficult to reconstruct the time line by the others. Is that possible ?

In the 3rd case, Tweets may be able to use as a confidential communication between foo and bar, especially when they are not following each other.