Reading an answer under this question, I found one interesting point: the use of the future perfect with the verb possess. My question is rather simple. Consider:
By that time, I will have possessed three cars.
(NOTE: It doesn't have to be "By that time", it might be something like "By the time I retire", "By the time my son graduates", a more idiomatic phrase such as "By then", etc.)
Will I still own the cars by that time?
In my opinion, it could be interpreted as either a) my possession will be over (so the perfect tense), or b) the possession will keep building up and by that time I will have already owned three cars.
Are both interpretations possible?
Note: I think this is a good example on the use of stative verbs with perfect tenses. Possess, in my opinion, is a stative verb. Saying "By that time, I will possess three cars." would be enough already; thus, saying "By that time, I will have possessed three cars." explicitly might be used to emphasize the sense that the cars will have already, by that time, gone.