According to the law of supply and demand, when the demand (desire to have Bitcoin) is greater than the supply (Bitcoin itself), the value of Bitcoin will increase. So, whenever Bitcoins are lost, the ones that remained in the market will have higher value as the market continues to demand the coins. If you lose your access to the private key of your Bitcoin wallet, there is no way that you can access the wallet again. The Bitcoin that it contained cannot be retrieved or spent, but the lost Bitcoins will still be recorded in a blockchain.
Interested to buy Bitcoin? Check the Market Now: https://www.bitkub.com/market/BTC