Gold is a relatively safe investment but the profit it brings is not as high as Bitcoin. We must take risks to get rich. that is the rule. No investment will be profitable without risk. Each person has his or her own way of thinking.
20% profit per year for 7 years = 140% profit [that is Gold]
$400 to $4000 and back to $800 in 5 years = 100% profit [that is bitcoin]