The answer is short, concise and clear, but really hits the target 
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There's no need to say anything in this case because everyone will definitely agree with your statement about what to buy.
The answer does seem very short, but it gives a very clear and deep meaning because until now there is no one who hates Bitcoin except people who do not know it thoroughly about Bitcoin..There's no need to say anything in this case because everyone will definitely agree with your statement about what to buy.
So I think the answer is very clear and very precise for the OP who asked about investing
but for long-term investment it is also not something that is easy to do because it takes patience and not everyone has it,
what is clear Bitcoin is a coin that does not need to be doubted and I am sure it will continue to grow in the future