One of the world's greatest physicists, Stephen Hawking, graced an event at Science Park in Hong Kong as a hologram. Unfortunately, Hawking was unhappy when he talked about the rise of Donald Trump. According to him, the future of science is really blurry.

The 75-year-old English living legend also discussed extra-terrestrial life, Brexit, and his life as a researcher. For one thing, Stephen Hawking and Roger Penrose worked on gravitational singularity theorems based on general relativity. The former is also known for the famous prediction that black holes emit radiation. In fact, the term was named after him.

Hawking, meanwhile, suffers from ALS (amyotrophic lateral sclerosis) that eventually paralyzed him after decades. He is currently communicating using a single cheek muscle attached to a speech generating device. Additionally, the physicist received the Presidential Medal of Freedom, the highest civilian award in America. His book, "A Brief History of Time", was a best-seller in the British Sunday Times for a record of 237 weeks.

Live Science reported that Hawking expressed his concern about the way Trump is handling the issue of climate change. Also, he is sad because he feels that he and his colleagues are not welcome in the new United States. For example, the Environment Protection Agency (EPA) has already seen major reforms since Trump took his oath. The EPA might experience a 31 percent budget cut in 2018.

Hawking also disagreed with the appointment of Scott Pruitt as head of the EPA. Reportedly, Pruitt blasted the same agency before his job order. He even said that carbon dioxide is not the main driver of climate change. Hawking urged Trump to "replace Pruitt."

On the other hand, the hologram was created by Hollywood-based firm ARHT, per RT News. It was referred to as the 'HumaGram'. All in all, Hawking fears that with the new US Present and the Brexit, "we are witnessing a global revolt against experts."