Hi Danny (and all the others that are well informed)

Hope you can help spread some light on a few questions.

From what I understand of the Bitcoin and cost of transaction:
1. Any transaction has to be hashed in a new block to be considered valid.
2. The amount of resources needed to mine a new block will increase exponentially in the future.

Will this not make it really cumbersome to use bitcoin as means of payment on a larger scale?

If your calculations are accurate about the cost of mining a bitcoin aprox $90 USD, how come they are trading at approx $17000 now?
Even if we say the cost is $2000 its still alot less than $17000
Maybee Im missing something obvious but please enligthen me.

Im very new here and its not my intention to offend anyone but the topic seemed right for my question, hope you don't mind.