Hello all . I am just starting the courses here and I’m enjoying trying to understand it all… A few things have jumped out at me and I’m looking for peoples thoughts on some potential problems that BTC could encounter and looking for reassurance/ better understanding
1: UTXOs… If fees increase when using multiple UTXOs for a transaction / sending back ‘change’ to the wallet, then if say in 10yr when the BTC has been split and split into trillions of UTXOs won’t it make using it for transactions expensive and impractical?
2: Mempool Hacks, is the network vulnerable to attack via the Mempool by simply overloading the network with transactions with bots etc.?
3: Fees: An example of the block reward showed 14.5BTC paid (not 12.5BTC) as this includes the fees, so for every 12.5 BTC, 2BTC in fees… This seems a very high percentage of fees when free to use Visa?
4: High electricity useage makes a valid case for worldwide banning of mining and conversion of crypto into fiat, along with clear evidence of fraudulent trading / price manipulation (1-2k crashes in minutes?!)
Not trying to be negative just a few things that seemed a bit of a concern long term…