why bitcoin mining difficulty is increased?
I just want to knows that why the bitcoin mining difficulty level is increased and i am afraid of the life of future miners.Maybe in future the miners electricity will cost more than our rewards because of the difficulty level.
Could there possibly be a software that can make mining easier.
No. If there's such then block retarget time and difficulty changes would be completely useless. Also, with a currency that can be gamed, bitcoin would not reach this far in terms of value knowing that acquiring it is easy and need not any hard work. ASICs and dedicated miners would be useless resulting into a sloppy economy and no market for mining overall.