Neil Freiman

Then the other person to know is David Sinclair.

He is the co-founder of Life Biosciences, the company that's doing this particular study.

He is probably the most controversial but most accomplished scientist in this particular field.

He has talked about—he runs a lab in Harvard, which has spawned a lot of these companies.

He has talked about bodies being like computers that can be programmed and reprogrammed and rebooted.

So he's been a huge booster of this.

At the same time of him being a huge booster, he's also—

made some pretty, maybe not outlandish claims, but very ambitious claims about longevity science where others in his field have sort of pushed back and said, look, he said stuff like, yeah, the person who's going to live to 150 years old has already been born.

And some of the people who have worked with him in the past have called him a snake oil salesman and talked up his accomplishments a little too much.

But at the same time, they concede that whatever life biosciences is doing with this first human trial and the fact that there's so many companies in this space and they're really making advancements,

could not have happened without him.

You know how good it feels to finish up a project that's taken you months?

For the Sagrada Familia, it's been 144 years.

Today, Pope Leo will be in Barcelona to bless the completion of the world's tallest church, whose torture construction began in 1882.

While a moment for celebration, it's also sure to inflame debates about overtourism in a city that's fed up with out-of-towners.

The Sagrada Familia is the masterwork of legendary Spanish architect Antony Gaudí, whose jaw-dropping Dr. Seussian buildings you've no doubt seen if you've been to Barcelona.

The church's final tower is going to be inaugurated today on the 100th anniversary of his death, June 10th, 1926, when it was just one quarter completed.

When asked when the Sagrada Familia would be fully built, Gaudi replied with his most famous quote, "'My client is not in a hurry, that client being God.'"

Which is a good thing, because this church has been a bear to build, primarily due to two factors, money and war.

During the Spanish Civil War in the 30s, a decade after his death, Gaudi's blueprints for the church were mostly destroyed, leaving his associates and disciples scrambling to decipher his plans.