It's been said that incandescent light bulbs lifetime has exponential distribution. As I understand, this means a 10,000 hours time-to-failure has the same probability no matter how long the light bulb was used until now (i.e. the "memorylessness" property).
On the other hand, Wikipedia says that "(a light bulb's) Lifetime is approximately proportional to $V^{−16}$". Doesn't this mean that if the lifetime is 10,000 hours and 5,000 hours have passed, failure in 10,000 hours is less likely than in 5,000 hours?