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A comment on Volkswagen exec admits full self-driving cars 'may never happen'. Parent comment
The nails aren't structural, only a signal.
Multiple nails mean the signal is highly redundant, depending on density.
Regular maintenance could detect weakening signal (rusting nails) and result in new nails being inserted.
Iron oxide remains (weakly) magnetic.
Treatments (galvanised nails, coated, etc.) could slow corrosion.
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The nails aren't structural, only a signal.
Multiple nails mean the signal is highly redundant, depending on density.
Regular maintenance could detect weakening signal (rusting nails) and result in new nails being inserted.
Iron oxide remains (weakly) magnetic.
Treatments (galvanised nails, coated, etc.) could slow corrosion.