as we know now the gas fee to send of a token is very high. what will be the reason?

they says that the etherium blockchain is congested.
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Apparently, higher Ethereum transaction costs must have a cause. As of right now, there are a lot of speculations regarding newly developed Crypto-exchanges spamming the Ethereum blockchain with transactions due to their voting process(es). It is possible that it’s indeed causing a hefty increase in the number of transactions, and it highlights the need for a scalable blockchain. If this situation continues, such high gas prices will become the new normal and cause a lot more issues down the line.