bitcoin can last forever, as long as we are made aware when devs have given up on bitcoin. to boot them out and get new talent in, willing to keep bitcoin innovative onchain

physical media does have a shelf-life before it wares out
physical media has a limitation to what can be unscrewed, unslotted and upgraded before its obsolete.
so yea PC's and CD's do get replaced by new tech.

but digital can be tweaked, recoded and updated daily and still function.
as long as the digital item still has a function and purpose people need. people will use it. and others will maintain it

at the moment we are seeing a bit of a battle going on where bitcoin devs are actually saying blockchains and bitcoin is broke and wont work by saying it cant scale and it cant buy coffee. in an attempt to give up upgrading bitcoin. but instead tweaking bitcoin to be compatible with a different network that is not blockchained. and then push people into using that other network

importantly LN is not a bitcoin feature. LN is a separate network that will be used by multiple coins and will inherently be final designed to get people to lock funds into addresses that 'banks' own, called factories. and then on the other network away from the blockchain. have the factories drip feed down 'value' to 'bank branch' hubs. which then feed users 'account' channels with value. whereby closing an account is not exiting LN to a blockchain but refeediing the funds back up to the 'bank branch' hub and then to the 'bank' factory so that the bank can then re drip feed another account.. keeping people away from the bitcoin blockchain as much as possible.(research: LN factory)

like how banks done it with gold 100 years ago(research: bank fortknox)

but the good thing is. we can actually pushback and get them deceptive devs who want to call bitcoins utility broke. to get out of their role. if they cant fix it on the mainnet then they are outdated and need to be replaced. and then get those that really support bitcoin to concentrate on bitcoin mainnet innovation and growth. not them silly other networks

ohm franky i tell you all premined coins have only as long developer support as long there is funding.

zcash, dash, bitcoin cash, bitcoin sv, etc. all can survive only as long as the people buy the premine of the developers, and they only are being upkept and marketed as long as they do that.

regards

New technology are more happenny accepted into the world and bitcoin as the mainstream manifestation of the blockchain technology was accepted and to my understanding this bitcoin survival solely depend on the developers either to sustain the technology or to forfeit the technology.

Bitcoin exists because of the technology within it, which is the blockchain. We all know that technology is changing through time. In our lifetime, maybe bitcoin will flourish. But, as time goes by, new technology will come and for sure it qould be better. For the meantime, this the time for bitcoin amd its technology.

Nothing will last forever but it will certainly last longer than 10 years. The most important part of something lasting for a long time is ability to be maintained and upgraded. BTCitcoin have bring us a great feature of monetary system that world has never seen before. This is just the beginning of something great. Don't be afraid investing into it as long as you don't see some major outbreak in technology that will be much better which will happen eventually at some point where we as a human species will evolve dramatically with AI singularity.

-Everything is open source, quantum computers are threat but they can be countered by development and adding more digits.
-Government cannot ban it. They can but... they can't stop it. It would just take longer time to adopt it.
-You have gov. and major corporations who might want to centralize or take over it but again you have the same thing in market stocks while blockchain gives you more comfort zone while anything can happen with stocks.

If you are afraid of it the best advice from me would be that you should never invest into something that you don't feel comfortable with. Never invest more than you are ready to lose and never invest into just 1 project because as my personal moto says: "anything can happen"  

Bitcoin is like a program. Look at Windows. Would you say in 1995 that it is not going to last forever? It didn't, in the form that it had in that year, but I'm still using a windows Machine, only that it's a bit different from the machine that I had in 95. Bitcoin can survive for a 100 years if it has a community behind it and that community is active, like the one we have now. I agree that nothing lasts forever but it can last for as long as we need it to last.

It's better to believe for the new technology wil not last forever, Because new technology gives benefits this new currency bitcoin or virtually cryptocurrency using the new technologies.

I believe until the newt technology not obsolete virtual cryptocurrency still stay until forever and bty the help of the people support.

Nothing around us will last forever. The computer I'm using now will only last a few years, but I'm confident BTC will last many more decades. Even if the network's going down to 2 computers, BTC can keep on going. The real question is how many people will keep on using it. I hope it will grow, and each time I'm watching the news, I see reasons to be hopeful. I see larger and larger deficits in most countries. I see more and more taxes to try to curb those deficits. I see more and more civil unrest, the yellow vests people in France, the occupy people in the US... Sooner or later, people will realize that BTC is a safe way to keep your savings, and to do business outside of the eyes of the devil, the taxman.

a one world currency can last a long time. and bitcoin seem to be heading that way

Anything is never permanent in this world , yes Bitcoin also will decline , same goes with Currencies of nations like USD they also will decline. But we have to understand that Bitcoin is pretty much very young it will bloom with time. Technology will be developed and Blockchain will also be developed.