Despite its volatile nature, Bitcoin surely will always appreciate and thus, investing up to a half of Income is a wise one with future mindset.
Investing up to half of your income it’s not actually ideal , in as much you consider the bigger picture of Bitcoin in the future , you should also understand it’s a long term investment, so you are adviced to invest with your discretionary income, so that it won’t affect you unless you have other business and investment that can fetch you some money , if not investing half of your income may affect your accumulation journey or properly result to selling when you don’t have much money with you .
yes, investing using discretionary money is indeed very good and indeed the right way to buy btc is to use discretionary money. but in my opinion, if you invest using half of your discretionary money, of course, in my opinion there is nothing wrong because of course not all discretionary money is put into btc. but honestly I am amazed at someone who is so ambitious to buy btc that he wants to buy half of his income whether it is discretionary money or not. but it is true that your opinion is that if you have income from other sources, there is nothing wrong with using half of your income to buy btc.
considering that investing in btc is best for the long term, of course an investor must be able to manage existing income which is certainly so that we can hold btc for the long term and for sure we also don't forget about emergency funds and it would be better if emergency funds should always be added because of course fiat money is always exposed to inflation and of course if the emergency fund is more and more, of course, it will definitely make us longer in holding btc, it could even be more than 10 years and will not sell the btc because if there are unexpected needs, we always use emergency money because of the large amount of emergency funds. and it is true that if for example we cannot manage it and not in a good way in investing in btc, it will definitely end up selling btc because of unmet life needs.