Nobody’s ever lost money investing in Bitcoin for four years

“If you think about Bitcoin, if your time horizon is one month, it looks like a volatile risk asse, but if your time horizon is 10 years, it looks like a risk-off store of value asset. So, the crossover point is four years. Nobody’s ever lost money investing in Bitcoin for four years." - Michael Saylor

In other words we could go for up to 4 years without profit in BTC, the key is patience and also one should not invest money needed within 4 years period.