But what if I decide to use my emergency fund to invest in Bitcoin ?what if the market is favorable and I decide to use my emergency fund to get more? Just as u said, it stresses the need to buy and continue to buy and hold for long .
Don’t do this. You should only invest what you can afford to lose while the funds you are planning to use was intended for emergency purposes which you will not know when you will need it.
You will be obligated to sell your Bitcoin if you choose to use fund that was allocated on other important things.
Bitcoin will always available to buy so just DCA using money that has no allocation. Reduce your expenses and use the save money on Bitcoin purchases.