What is the key economic reason modern routine LEO capsules might favor advanced ablative shields over fragile reusable silica tiles?

Answer

Lower turnaround time and inspection costs.

For routine access to Low-Earth Orbit, the significantly lower turnaround time and inspection costs associated with an expendable ablative heat shield can outweigh the material cost and complexity of maintaining thousands of fragile silica tiles.

What is the key economic reason modern routine LEO capsules might favor advanced ablative shields over fragile reusable silica tiles?
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