okay here I just want to find out the answer from the members here because I think about it and sometimes get curious 
People say that if we save 100k$ in the bank and take it out, say 5 years later, the value will not be equivalent to 100k$ 5 years ago.
then if I put my money 100k$ into bitcoin 5 years later the value let's just say it rises to 300k$. just for example.

My question is whether the price of bitcoin is rising or is fiat experiencing a decline?
because someone on the internet I saw once said, house prices don't rise, fiat is the one that weakens every year.

so if you buy a house for 20k$ in 1980 then sell it now for 500k$, he says that the house is not going up but the fiat is going down.
that's why we see rising prices in commodities in the long term.
Are all commodities actually stable, but fiat is weakening or are there exceptions?

I saw Robert Kiyosaki say he owns 15,000 houses and doesn't like Bitcoin a few years ago, but recently I looked back at his interview when he said he bought Bitcoin, and said it was a valuable asset?
does he see that bitcoin is an opportunity?


any suggestions would be greatly appreciated

We all know that there will be an Ieo coin launch in Binance, namely SFP, and it has become big news that even the comitted BNB collected so far has reached 6 million BNB, estimated at 415 million $ ++, so according to your predictions SFP will be opened at what price and at what price fold the increase that can be achieved when listing later x10, x20 x30
share your opinion

some time lately, I have seen several projects making payments using ETH. I did not say that new projects will die but they might use this alternative, so my conclusion is whether this will be a new era in 2020 where all projects will make payments using ETH or other coins that are already on the market, or is it just a coincidence that they use this method, to avoid a very drastic decline in value when listing on the market?
the initial appearance of IEO was also ignored but it boomed in mid-2019.
share your opinion, any advice will be apreciate