Cody McGrath 
Bitcoin supporter Samson Mow recently used social media to discuss the impending Merge’s centralization features, he stated that a few node operators might change, delay or even cancel the upcoming Ethereum Merge.
After the Bellatrix update was finished on September 6, Ethereum entered the countdown mode and will officially switch over between September 13 and 15, depending on the network’s hashrate (computer power) input. The Terminal Total Difficulty (TTD) difficulty threshold, with a value of 58750000000000000000000, is expected to start The Merge.
While everyone believes that the Merge will be initiated by a predetermined threshold of difficulty, Mow asserted that there is one component to which few people have given much thought. Node operators, according to him, are capable of overwriting the TTD value with a single line of code.
The main centralization problem with the Merge was highlighted in a blog post by Galaxy, and Mow asserted that Ethereum had purposefully concealed this fact.
He observed that because there aren’t many important nodes, “those in authority can just “supply the actual number” for activation time anytime they want to. The fact that they afterward create tracker websites to “predict” when it will occur is funny.
In order to gather his opinion on the imminent Merge and the centralization discussion surrounding Ethereum’s impending shift, Cointelegraph contacted Mow. According to Mow, if proof-of-stake (PoS) were to be implemented, “the centralization component of Ethereum would become irreversible.”
In a PoS system, he continued, node operators are the only ones in charge of making decisions, as is evident from the TTD override example. He stated:
“If Ethereans really wanted to have something energy efficient, scalable, and cheaper, they would be doing R&D on Bitcoin second layer technologies like Lightning and Liquid.”
The move to a PoS network by Ethereum was first intended to solve its scaling issues, but when the energy usage of the Bitcoin network came under increasing scrutiny, it quickly evolved into a case for energy efficiency.
The third step of the three-phase transition process, which includes the Merge, would bring about the majority of the primary advantages, such as lower gas prices and quicker transaction throughput.