ELI5
ELI5
Examples:
why cat hides when they're sick?
,
rna vaccine
,
string theory
,
time travel
,
how does matrix multiplication work?
Undercover
Undercover means to do something secretly or in a way that no one knows who it is. For example, a police officer might go undercover by wearing a disguise and pretending to be someone else in order to catch criminals.
Related topics others have asked about:
Illegals Program
,
Secret identity
,
Sleeper agent