2025-09-04
40 分钟The Economist So a few weeks ago I flew out from London to Hong Kong and then I made my way by car across the border into the mainland into China's Guangdong province just on the southern coast.
That's Emily Steinmark, the Economist Science Correspondent.
And you get to see a lot of different stuff.
You drive past Shenzhen, which is like this super futuristic city.
and then arrive in a very rural mountainous farmland.
People tending the land by hand, you know,
with their shirts off, little black goats just roaming freely,
and just beyond the fields, incredibly thick and dense green forest covering these mountains.
And it was at the foot of one of these mountains that I boarded a little yellow train.
The slope is 40%, so it's a little deep.
You can see the railway.
I was with my guide at the site.
He was an engineer and a physicist and it's about a little over a kilometer this train.
And it doesn't take you through the hills or kind of show you this amazing landscape.
It goes underneath one of the mountains.
It's quite a loud journey.
And then you exit and you're in this massive, quite cold, quite damp network of tunnels.
Let's see if there is a tunnel.
Yes.
It's sealed to the hole.