For those of you wondering what Alicia Silverstone’s been up to lately — a vanishing slice of the population, no doubt — here’s the answer: Posing naked for PETA.

It all feels so late 1990s, back when PETA had caché. Back when it was a big deal for a major celeb to pose naked. Now it’s all so trite, so pedestrian.

But maybe we don’t tell Alicia that? She seems to think it’s a really big deal.

Here she is at 46, in nothing but vegan cowboy boots, looming over Times Square in a 29-foot-billboard, surrounded by cacti. The none-too-subtle tagline: ‘Don’t Be a Prick. Wear Vegan.’

‘I never, ever get naked in TV, in film — nothing,’ Silverstone said. ‘But I’ve done it for PETA.’

What a sacrifice. Those real-world heroes of the past few years — from frontline workers still battling COVID-19 amid a tripledemic to the freedom fighters in Ukraine to protestors in Iran tortured and executed while fighting for women’s rights — all surely tip their hats to you, Ms. Silverstone.

You’d think the celebrity-industrial complex would have taken a lesson from that most egregious and unasked-for public service message at the outset of the pandemic and the terrifying global lockdown to follow: The video of Gal Gadot, Sia, Natalie Portman, Kristen Wiig, Jimmy Fallon, Will Farrell, Mark Ruffalo, Maya Rudolph, James Marsden, Zoe Kravitz, Kaia Gerber and others singing John Lennon’s ‘Imagine’ to us from their mansions and acres of landscaped private outdoor space.