[robinhoode]

Railroads need repair too? Not sure if it's every 4 years. Also, the trains I take to/from work are super slow because there is no money to upgrade.

I think we may not upgrade every 4 years, but instead upgrade when the AI models are not meeting our needs AND we have the funding & political will to do the upgrade.

Perhaps the singularity is just a sigmoid with the top of the curve being the level of capex the economy can withstand.

[arcticbull]

For what it's worth they cost a lot less than highways to maintain. Something like the 101 in the Bay Area costs about $40,000 per lane-mile per year, or about $240,000.

Trains are closer to $50-100,000 per mile per year.

If there's no money for the work it's a prioritization decision.