80. Watching worlds collide: bubbles, bubbles, bubbles

Getting tired of malicious attacks by anti-landscapists, Spencer Chang, Matt Kleban and Thomas Levi released a paper about one observable effect on string theory landscape. (…)


67. Weak lensing and modifying gravity

Jochen Weller et al. are trying to constrain the modified gravity theories with weak lensing data combined with baryon acoustic oscillations and supernovae data. (…)


66. Some interesting talks worth watching

Steve Carlip talks about topologically massive gravity at Perimeter, namely, about 3d topologically massive gravity in AdS and finds that it is unstable (even for chiral values Strominger mentioned at Strings 08). (…)


63. A little break for a poetry :-)

I was contacted by James Kotsybar, who presented me with several pieces of poetry I have no idea why he sent them to me, but they were fun to read - although not Shakespeare, but I liked them (in which respect - that I will not disclose). (…)


58. Stability of de Sitter space: dS as a perfect interferometer

Let us now show that QFT of a massive scalar field in de Sitter space features instabilities if the number of dimensions is odd. (…)