In this week's comments update, readers are debating the dismantling of the metabolist Nakagin Capsule Tower in Tokyo and discussing other top stories.

The Nakagin Capsule Tower, an iconic Japanese housing block in Tokyo, is being demolished due to the decay of its concrete and steel structure.

Its interiors are in the process of being emptied out in preparation for asbestos removal, after which the building will be completely disassembled.

"Architecture was brave once"

Readers are divided. "An astonishing space!" said Katana. "Architecture was brave once. Today's is just sad."

Tim Humphreys agreed: "I hope some design museum buys at least one capsule and saves it for prosperity."

"Architecture in Japan has always been seen as an ephemeral art and Kurokawa would appreciate that his work is finite," replied Jay Cee.

Walter Astor felt differently: "Architects who claim to like this crude building should be forced to live in one of the 'pods' for a year or more. Only direct experience of the de-humanising severity of this appalling building would cure them of their elitist and misguided pretensions."

Should the housing block be saved? Join the discussion ›

Reader calls Oscar Niemeyer's final building "a timeless masterpiece"

Commenters are amazed by late Brazilian architect Oscar Niemeyer's final building, which has opened at the Château La Coste vineyard in southern France. The pavilion was designed in 2010, two years before Niemeyer's death aged 104.

"A beautiful, timeless masterpiece," said Alfred Hitchcock.

Apsco Radiales agreed: "Classic Niemeyer building. Built for all ages."

"A final masterpiece from the master," concluded Pa Varreon. "Absolute spatial perfection. I hope it is registered with the Humanity Heritage."

What do you think of the project? Join the discussion ›

Commenter thinks spherical venue "looks like a large black boil ready to burst"

Readers agree with Anna Minton, who writes that "more important than the aesthetic shortcomings of London's planned spherical venue, is the failure of democracy that is allowing it to be built."

"Looks like a large black boil ready to burst," said Tim Smallwood.

Tricia Ball was also annoyed: "London bending over and letting itself be taken by a grotesque American corporate machine. It must be stopped at all costs if we are to protect the dignity of our city and the quality of life of those who will be forced to live close by."

"London open to the highest bidder as always," replied Becks. "Profit first, politics a close second, while community and aesthetics are simply an afterthought."

Are commenters being harsh about the MSG Sphere? Join the discussion ›

Reader says they are "waiting for Renzo Piano's rap song" after Justin Bieber designs Vespa

Commenters are unimpressed by Justin Bieber's all-white redesign of Vespa's classic Sprint scooter. The musician also added a ring of icy white flames to give it a "Justin spin".

"Geez…" said HiKoo. "First Kanye now this guy. I'm waiting for Renzo Piano's rap song."

Zea Newland continued: "The monochromatic design is nice but the flames decal is trying too hard to be unique. Either confidently make these flames red or ditch them completely."

"Putting the 'mope' back in 'moped'," concluded Keith Dougal.

Would you buy a Bieber-designed scooter? Join the discussion ›

Comments update

Dezeen is the world's most commented architecture and design magazine, receiving thousands of comments each month from readers. Keep up to date on the latest discussions on our comments page.