You cant say those things yet because it is too early  . anything can happen , what if satoshi decides to shut bitcoin down ? Because many people are still complaining blah blah blah or what if bitcoin will collapse and die permanently because it is really a huge bubble ?  Etc...

Nothing is immortal in this world aside from the creator ( god )  .   but lets forget all those possibilities for a while because those things are not good .  i also love bitcoin to last for a long time because it also give me alot of benefits that i cant find anywhere .

You have a point there. Well as for me bitcoin will only be immortal if and only if the bitcoin that possess or acquire by someone can be passed on easily to other people after he or she died. It is indeed that people will die and will leave bitcoin as is but that doesn't mean bitcoin can be immortal.

When people die, bitcoin supple will be less if some person keep hidden and no body know about some one was pas away have and save bitcoin at their wallet.

How can we know that 4,000,000 coins have been lost? The only ones lost
Are those sent to non bitcoin addresses or those which were mined in the
early days and have been destroyed by hardware being destroyed. There
are other cases of passwords and private keys to wallets being forgotten.

It is true that wallets will be rendered defunct due to owners death. We must
all be aware of this and take precautions. My Son knows where the private
keys to my wallets are should I die unexpectedly.

People are becoming more aware of their assets and it's safe keeping, as it's true value is beginning to unfold.
I believe that bitcoin holders should be considering the transition of their assets as it gets handed down after them. This would help prevent loss of bitcoins due to unforseen circumstances.

Who care if we will die
When i will die then for i will not take care of some private keys
For sure something has to happen on bitcoin blockchain because of energy use
Already now bitcoin miners have problems to find place to mine bitcoin
As for now i am waiting for bitcoin sidechain
It will be big steps for bitcoin