I have noticed greatly the speeding up of time(as ive aged). I cant say its memory tho. I cant honestly say its anything in particular, its just fact. Would be interesting to hear from an extreme sports participant if time seems to 'fly' as you get older. Some have said it may be due to our perceptions. That is that things seem more new and exciting when you are young.
Well reincarnation is a total mystery, maybe the dali lama can enlighten us on the subject. What ever his answer I guess we may not know until its to late to give the 'proof' to the rest of humanity(if we come back as humans).