Yes, wearout rate definitely depends on temperature, but without reference to any actual data, this is what I mean by "no evidence".
Is it reducing 10 year lifespan to 9 years? 9.99 years? 5 years? Was it 50 year lifespan? It's pointless conjecture.
Is it reducing 10 year lifespan to 9 years? 9.99 years? 5 years? Was it 50 year lifespan? It's pointless conjecture.
On the other hand, if it is designed to throttle at a temperature that materially reduces the lifespan, then it needs a fan to preserve its lifespan.
Either way, the hardware is starkly suboptimal for a pretty large set of advertised use cases until you add a fan.
That's another claim that needs evidence. It seems possible to me that the thermal throttling is designed to prevent logic errors.