A big red flag, according to researchers, is that Neuralink has barely been sharing any information at all.

• Concerns rise as Neuralink fails to provide evidence of brain implant success, raising safety and transparency questions.

• Controversy surrounds Neuralink’s lack of data on surgical capabilities and alarming treatment of monkeys with brain implants.

• While Neuralink touts achievements, experts question true innovation and highlight developments in other brain implant projects.