Sweden is contemplating to stop using cash by 2023, does this mean cash might be extinct if other countries follow suit?

https://www.weforum.org/agenda/2017/10/sweden-could-stop-using-cash-by-2023?utm_content=buffer40bef&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer

I just read on Btcjam blog that they are closing down: https://blog.btcjam.com/2017/05/25/btcjam-is-closing/, now I am just wondering if big players in thebitcoin industry are closing down, is there any future for bitcoin really.

I came to know about bitcoin through btcjam when i was introduced there to borrow. Eve in this forum, looks most signature campaigns might close down because of the ever rising price of bitcoin. Most of them have reduced their payout amounts for posting by more than 50%. Is this a good sign or a bad sign for the bitcoin development?

Now that the issues in China seem to have settled down, and the market has normalized after a turbulent first few weeks of 2017, it is time to look at the next event on the horizon. That will come next month, as the Winklevoss ETF judgment is due in less than four weeks. What do you think of this statement? <br /> <br />Posted From bitcointalk.org Android App

The EPL is underway and several teams are racing up for the top slot. Chelsea is currently leading the pack while others like Arsenal are trying to close gap. If the options given above do not match with yours, kindly post here how you think the teams will be and give reasons for your options.   

My friend died in a grisly road accident two months ago. He had accumulated quite a substantial amount of bitcoins and he had told me that he wanted to sell them when the price hits over $1,000. he had accumulated then when the price was below $250 a few months ago. Given that we had exchanged bitcoins on various occasions, I decided to check one of the addresses that we transacted with him and realized that indeed it had bitcoins.

My concern is that they will get lost just like that because no one knows the passwords that he used. He left behind a very young family of wife and two beautiful daughters. I feel if someone can gain access to these bitcoin they will help the family a great deal. I know it is difficult but I wanted to know if there is a way that the address can be "hacked" to enable his family gain access to the bitcoin.