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Beat new Axis of Evil on technology front

The new Axis of Evil led by the PRC with its Russia province fighting on the Ukraine front may have quantitative advantages regionally, or even globally, but it can never have an overall advantage on the technology front because freedom is the most important factor for innovation. I started to wish the Ukrainian government could appeal to engineers and scientists worldwide to join coordinated efforts to defeat the invaders on the technology front, soon after the Rashists began the full-scale slaughter.  There are so many technological breakthroughs that Ukraine could use to defeat the enemy - jam-resistant drones (they have fiber-optical drones now, but they could be better), reliable wireless communication to replace Starlink that is controlled by an unreliable man, autonomous unmanned land, sea, and aerial vehicles, cost-effective drone and missile intercepters, etc. I was frustrated by not seeing any movement in that direction, though Ukraine is doing a great job in developing i...

Tidbits of Bulgaria Tour

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This is not a comprehensive essay on visiting Bulgaria. It is a collection of my observations and my own reflections.  Like many Eastern European countries, Bulgaria is underappreciated. It gave me a great first impression, and never disappointed me during my tour. Sofia Beautiful Sofia airport with mountains in its background welcomed me with unbelievable convenience on March 5, 2025. The border control officer smiled and s tamped my passport after I answered his routine question regarding my travel purpose - touring. The metro station was right in front of me after I exited the airport hallway. A policeman guided me to the metro entrance after he noticed I was trying to use my credit card to purchase a ticket at a kiosk. I just needed to tap my credit card at the entrance to enter the platform. The metro station is beautiful and clean. Metro  M2 line took me to the center of Sofia - Serdika. It was a short walk to the M4 platform, and M4 took me to the Central Bus Station, a...