I feel Polkadot will again surpass XRP very soon. In the last 2 days, XRP was heavily pumped up and drop back but still in a good position but it's hard for XRP to maintain the position above to the Polkadot as we have seen many exchanges has already delisted XRP So we will see the impact of this on XRP in coming time. Things can change only when XRP wins the case against SEC till then it's not easy for XRP to maintain its position above Polkadot.
Yeah. but the difference is just 2 billion dollars and that says a lot. Polkadot is a fairly new and not a huge coin that blasted off amazingly from the first moment whereas XRP is a coin that was created and pre-minted by Ripple company a decade ago (nearly). So, this is a proof that old needs to make a place for the new, the old ones are getting lower and lower and people will stop caring about them all together in the future. Why xrp took over?
It finally had another bull run to displace dot but why was it down to begin with? Because XRP was/is managed by a company, literally the definition of centralization because it is all controlled and decided by one company, what happened to that company? SEC said they can't do that and stopped them from working and started to investigate it, hence at the end we ended up with absolutely low level XRP price.