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If we assume a fixed lifetime of n years for vacuums, it will take at most n years to get to 20%. If we assumed a half-life of n years, then robot vacuums will
by greenshackle2 10y ago
If we assume a fixed lifetime of n years for vacuums, it will take at most n years to get to 20%.
If we assumed a half-life of n years, then robot vacuums will only ever approach 20% asymptotically and won't ever reach it.
(We could get over 20% if robot vacuums have a longer lifespan than regular vacuums. I'm tempted to write a simulation over different failure curves but I really have better things to do.)
- daurnimator 10y ago> If we assumed a half-life of n years, then robot vacuums will only ever approach 20% asymptotically and won't ever reach it. You shouldn't assume that they will be 20% of sales for every future year.
- lostlogin 10y agoNot sure if you have ever met a Tellus vacuum cleaner, but as far as O can tell they live for ever and bugger up this equation.
- Cerium 10y agoI would guess robot vacuums have a shorter life! I'm still using the same vacuum I grew up with, it's more than 20 years old and going strong.