Why can ours lives b so short???

Answer 1

Time being relative, we live our lives as lon as we think we can.
An insect lives only a very short while, relatively speaking, and a tree lives a lengthy life.
Its all a matter of perspective

Answer 2

life is not short ,, u will have to think like that by brodening ur mind ,,, normal human being will leave at least till 60 yrs ,,, yes it is unpredictable ,, he may end up in 20 yr , 40 yr , 3 yr ,by accidently ,,, but think 60 yrs X 365 days are ur ,, u can achieve what ever u want , ,,,,,,,,,,,,,,,