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Yet I can assure you that Fear is what is holding most of the investors who are yet to invest, back to investing in Bitcoin, they believe one day it will crash just as they've been believing since Bitcoin @10k

I hope they know they facked up when it hit the recent 100k...
If fear is the reason why some people are still yet to invest it means bitcoin investment is not for them and they can never invest bitcoin in fears. Let those who have the understanding of bitcoin continues with the opportunity of buying more bitcoin and hodl. Those who are scared of buying bitcoin in due time they will have the understanding and learn from their mistakes. If people are scared of buying bitcoin it means they have no understanding of what bitcoin is and you can't do anything about it.
Before starting investment, many may be hesitant in the initial stage due to which many are disagreeing to invest and many are afraid to invest. These trends are mainly due to their lack of knowledge about investing or Bitcoin. To those who are afraid to invest in Bitcoin, we should properly explain that Bitcoin investment is the safest and if you can invest in this Bitcoin for a long time, you will definitely get success from here.
Since bitcoin investment is to be done for long term so make it long atleast 4-6 Year.
For me I will say 4-6 years is not enough for a person who who has the least target, according to how we have been discussing previously, the least investing period is 4-10years and at most 10-30years above.
They should also understand that investing in Bitcoin does not require much knowledge or even much money. A person can continue his investment by attaining financial stability or by finding means of income and proper planning.
That's true, getting started to invest in bitcoin required a good steady job to maintain his financial strenght and he should invest the amount he can afford to lose with his discretion fund. Knowing that bitcoin investment isn't long term journey.