The subversive bacchanal for San Francisco’s eccentric underground is ageing out amid an influx of the super-rich

Burning Man, the infamous arts festival in the Nevada desert, turned 40 this year, and it’s showing some distinct signs of middle age.

It’s not just the tech billionaires who show up to party, the chartered flights straight to the desert or the HBO documentary about behind-the-scenes power struggles. The tens of thousands of people who assemble each year to create a tent city in the wilderness appear to be growing older, and it doesn’t seem that they’re being replaced by as many younger “burners”, as festival participants are called.

It’s simple, says the SpaceX boss – according to something called the ‘Kardashev scale’, we just have to move energy production ‘off-planet’

Next time the weather gives the UK 61 days without rain and we wonder idly if this is the end, there is a term we may whistle up to soothe us. Like murmuring the rosary, or putting our fingers in our ears and humming, this phrase is to be mumbled on repeat – “the Kardashev scale, the Kardashev scale” – a buzzy concept in tech, much favoured by Elon Musk, and precisely the thing we’ve been waiting for. The Kardashev scale is the answer both to our impending doom and our anxiety around it – and if we decide to believe in it, we won’t have to give the climate crisis a single thought until the last drip falls from the tap.

This is the idea and it’s a familiar one to anyone who has watched tech billionaires take intractable, commonplace crises and decide that, among the measures and proposals in play, the vital missing ingredient so far has been them. Do you remember when Jeff Bezos, rather than doing something quotidian and loserish like funding public education by ensuring Amazon pays the same tax rate as regular Americans, decided instead to reinvent preschools?

Emma Brockes is a Guardian columnist

As Elon Musk, Peter Thiel and their peers have grown richer and more influential, Gil Durán argues they have all but abandoned democracy – and found the perfect government to enable them

In April, Gil Durán was permanently banned from Elon Musk’s X for posting just two words. Durán was responding to a post from the tech company Palantir outlining its 22‑point “technological manifesto”, which praised American “hard power”, western culture and AI weapons, denounced inclusivity and called for compulsory national service. Durán responded: “TLDR: Fascism” (TLDR is short for “too long, didn’t read”).

Durán didn’t break any of X’s written rules, he points out over a video call from San Francisco – so much for Musk’s “free-speech absolutism”. His ban might just have had something to do with his preceding tweet, showing the cover of his new book, The Nerd Reich: Silicon Valley Fascism and the War on Democracy. The book’s central argument is that big tech is no longer our friend, as many of its billionaire owners have seized economic and political control and are steering the fate of the planet towards their own bizarre, apocalyptic visions.

The lovefest from Musk’s conservative fans completely overlooks the unscrupulous tactics behind his immense wealth

For 12 glorious days in June, Elon Musk experienced something nobody else in the history of humankind has ever experienced: trillionaire status.

Did all those zeros make Musk happy? Did the army of children he has sired love him more? Did he find inner peace? We’ll never know because Musk was dragged back to being a boring old billionaire last Wednesday, after shares in Tesla and SpaceX plunged amid a broader tech sell-off.