Re: Is there anyone know how many bitcoins disappear forever?
Is there a place to collect the lost bitcoins (I mean the private keys is lost,and the bitcoin in that special address stay there forever) 
ITB (IntoTheBlock) is one of the analysts who stated about the research of counting how much BTC lost. They claimed we probably already lost around 29% of BTC. But it is concluded from no movement on those BTC, they haven't moved for many years. Not sure whether the approach is accurate enough, they only analyzed it on 1 factor only.Take a look here https://cryptopotato.com/this-is-how-much-bitcoin-btc-has-been-lost-forever-itb-data/
I have 10 lost ,I lost them in 2011.the price in that year is less than $1😄
10 lost? Do you mean 10 BTC or lost it 10 times?It is very unfortunate, but it gives you a big lesson, right?
And you?
I never lost any BTC so far. I have learned a lot about how to keep it in a safe way. I hope I will never experience to lose any of my BTC.