Stealth is everything in a fifth generation fighter aircraft. That is what gives them their phenomenal abilities in SEAD and DEAD abilities. The Su-57 is far less stealthy than the J-20. I would even argue that the new South Korean fighter is more stealthy than the Su-57 despite not being a fifth gen fighter yet. You add to that advanced sensors, sensor fusion, situational awareness, data linking and sharing information with other platforms, the J-20 is miles ahead of the Su-57.
Here’s What You Need to Remember: The J-20, however, is probably not designed as a dedicated air superiority fighter like the Su-57 is. Its concept of operations seems to be based on American ideas about how to operate a fifth-generation fighter aircraft. Not much is known about the specifics of...
nationalinterest.org
China is a technologically advanced country now. To deny what they have achieved over the past decades, not just in terms of economic success, but also scientific, technological and industrial research, progress and advancement and put down stuff they have made and are making is extremely delusional. It is actually extremely detrimental for us.
Material could find applications in solar cells due to its ‘outstanding’ mechanical and electronic properties, say scientists
www.independent.co.uk
We are talking about a country that has a nominal economy five times our size. That easily translates into greater volume and quality of scientific research. We are where they were 15-20 years ago. So right now, they are 15-20 years more advanced than us, technologically and economically. The Russians are simply unable to keep up. They were far behind the Chinese over a decade and a half ago and their chances of ever reducing the gap have all but disappeared after Putin started that pointless and destructive war in Ukraine.