Just for perspective (and this is discussed in the history page linked above):
HyperCard was invented by Atkinson in 1987.
The Web was invented two years after HyperCard, in 1989.
IBM PS/2s were new, and 80386 processors were current.
Hard drives were about 40 megabytes.
Perl was new.
Tinderbox was first released in 2002.
Curio was first released in 2004.
By today’s standards and expectations, HyperCard would probably fail (hence its being discontinued 20 years ago). But at the time, it was something quite different.