I wont really try putting my life savings into Bitcoin, no way! Its a very big risk for anyone that does such a thing and I cant risk it. I know a friend of mine that did that and ended losing more than 50% of his money. Best thing is to divide the money and make use of about 20 or 30% for Bitcoin investment, save the next 30% while you make use of the remaining percentage to start up an offline business.
That would normally be an insane thing to do and a very risky one for that matter. It is everyone's choice to decide what they want to do with their money anyway, but with the way the market is; there is no point getting greedy as nothing is guaranteed and even though things are looking brighter by the day as we keep forging ahead, at least, it is always better to take calculated risks.
You are right as at least a few percentage of your savings should be enough at least to minimize the risk of any unforeseen stuffs and probably push it into other offline investments to diversify the risk.
Yes.You need to diversify your investments not just online but also in an offline businesses.Bitcoin is such a risky investment because of its high chance of volatility so do not just depend on bitcoin alone for your retirement benefits,but rather learn to invest also in some good altcoins that will also give you good profits in your pention age.