it was the week twitter started testing a new online shopping feature. the playdate hand—held gaming console from panic became available for preorder. and after his return to earth, amazon billionairejeff bezos offered nasa $2 billion to reconsider the awarding of a moon mission contract to rival company spacex. also this week us presidentjoe biden said a cyber attack on america could lead to a real shooting war. the president was speaking with members of the us intelligence community. president biden�*s remarks follow recent high—profile cyber attacks that affected parts of america's food and fuel supplies. a start—up has beaten elon musk�*s neuralink company to fda—approved clinical trials in the race to implant a computer interface in a human brain. synchron announced its brain—computer interface the strentrode would undergo human trials in new york later this year. google is saying its us—based employees returning to work this autumn will need to be vaccinated.