the problem is the initial block download/verification (first sync) and the propagation and verification of new blocks.
the synchronisation is not a problem.
Yes, NOW it's not a problem. But with blocks 10 times bigger and a blockchain 10 times heavier it will be. And really ... real big blockers don't conform with 10 MB blocks, they want 32MB or even 1 GB to handle billions of users on-chain. That's complete madness. Let sidechains do that for us
lets first address the sidechains (i facepalm)
sidechain is an altcoin.. go play with litecoin or zcash or ethereum if you want that..
go support and protect a differnt chain/network...
honestly if another chain can handle 10mb then bitcoin can too.
simple reason: altcoins use computers.. altcoins use the internet so whatever an altcoin can handle bitcoin can too..
lets address the other part of ur comment
stop sniffing the reddit scripts of "gigabytes by midnight"
i continually laugh at the dooms dayers that know 32mb is manageable and any number below that is more then manageable
yep even 8mb is "RaspberryPi +ADSL (0.5mb upload /s)" safe.. so now the doomsdays try shouting
stay at 1mb or else gigabytes per block because they cant argue about 2-32 so have to exaggerate to 'gb by midnight' to scare people
this is not nor ever has been gigabytes by midnight proposal nor has there ever been a proposal for GB in hours days or months.
the main progress proposals onchain have been, natural growth over time that will eventually be xxmb IN DECADES
the stupid thing the "gigabytes by midnight" FUD scripters forget is that nodes choose what blocks are acceptable and so will not make such stupidly high leaps too soon. the nodes will challenge things going too fast. thus there is no problem. its self regulating because if the nodes cant handle it, they wont allow it. its the most fundamental part of bitcoins true consensus!!!
the reality is that TODAY 8mb is safe.. actually alot more than that is safe, but to calm down the doomsdayers it was suggested 16mb instead
of 32mb
then 8mb instead of 16.. then 4mb instead of 8mb then 2 instead of 4.. but then then the doomsdayers still cry they want 1mb
their explanations for 1mb are empty. no logic, no meaningful reason, apart from crying
every time i see a small blocker demand 1mb stays in effect all i read is
"no Call of duty/twitch live streaming due to ATI server rack data centres"
"no HDTV on demand due to server farms attached to household tvs"
in short they are stuck in the 90's
the actual headache is that cores UI is not set up to function until synchronisation is complete.
That's a minor problem. While a "Lite" mode could be desirable (some altcoins already have something like that) you always can use a SPV wallet for your urgent buys/transactions.
what im talking about is instead of core syncing and then prunning, no witnessing, stripping to become lite.
im talking abut core run in litemode. making the syncing part a background thing.
imagine it this way
imagine if microsoft instead of loading windows for people to use and then do updates in the background, microsoft decided that all windows updates needed to be done before letting people log into their computer.
people would hate waiting hours just to send an email or access a web page..
same goes for core and other nodes.
let people open the client and quickly get a utxo st of the keys they use to see a balance and be able to spend, and then the full sync just occurs in the background while people are using the node.
its not about turning off syncing. its about allowing users to use their node on the same day they download it..
because thats the part people are really peed off with.. not being able to do a thing for a couple weeks
