Billionaire entrepreneur Elon Musk’s plan to help drivers escape traffic by sending cars hurtling through dozens of skinny freeway tunnels has caught the imagination of some Californians who are sick of gridlock, but unwilling to give up their vehicles.

But even if that could happen, does that mean it should? That’s the question lingering after Musk’s much-hyped presentation this week, where he unveiled his first tunnel, beneath the streets of Hawthorne.

Before a crowd of investors, celebrities and Tesla owners on Tuesday night, Musk pitched his tunnel vision: building layers upon layers of one-way routes, each 12 feet in diameter, that would be reserved for autonomous electric vehicles to carry riders to their destinations.

Directing traffic underground could eventually free up space for more peaceful, pedestrian-oriented city streets, he said, with “less concrete, more trees.”

Read the full story at LATimes.com.